It’s big, stretching over 20 feet from end-to-end. It’s over 95″ tall. It knows how to haul, with 6,400 lbs. of payload capacity and a towing capacity of nearly 4-tons. The heavy-duty Mercedes-Benz Sprinter Cab Chassis is a powerhouse ready to take on the toughest tasks. Now, with the help of RENNtech, the Sprinter Extreme has transformed into the ultimate work machine concept.

Sprinter Extreme concept has super strength

“The Sprinter Cab Chassis is the most capable heavy-duty vehicle in its segment,” said Bernie Glaser, Vice President of Mercedes-Benz Vans in the USA. “The Sprinter Extreme concept has super-strength, unlimited hard-working capability and an aggressive design. Unlike most concepts, the foundation for the Sprinter Extreme can be ordered at a Mercedes or Freightliner dealership today with the help of our MasterUpfitter program.”

Long-time Mercedes-Benz customizer RENNtech added numerous touches to the Sprinter Cab Chassis in order to bring it from mild to wild. Starting at the front, a custom roof rack was built to support six forward-facing lights while additional spotlights are positioned on the sides of the roof rack. A custom brush guard complete with additional fog lights and a powerful winch are located beneath the Sprinter 3500’s front bumper.

A suspension lift package raises the Sprinter Extreme above six G-Class-inspired beadlock wheels and aggressive off-road tires. Custom rear fenders were fabricated to provide additional clearance for suspension travel and tire clearance. Finishing off the Sprinter Extreme’s look is an eye-catching vinyl wrap and chrome exhaust stacks situated on either side of the cab.

Sprinter Extreme concept has super strength

Sprinter 3500 Cab Chassis: A heavy-duty platform ready to take on any task

From the factory, the Sprinter 3500 Cab Chassis is incredibly versatile, providing an ideal platform for buses, RVs, ambulances and box bodies, just to name a few. Equipped as standard with a powerful 4-Cylinder BlueTEC diesel engine combined with an efficient 7-speed “7G-TRONIC” transmission, the Sprinter Cab Chassis has a best-in-class payload capacity of up to 6,400 lbs. and can tow up to 7,500 lbs. The Sprinter Cab Chassis can not only haul a tremendous payload, it can also transport three people, with its available three-abreast seating.

The Sprinter 3500 Cab Chassis is the ideal starting point for any upfit project with its flat, lightweight frame rails and numerous factory wiring options. Two wheelbases are available to choose from—141 inches or 170 inches—ensuring that the Sprinter Cab Chassis can meet any upfitting need. Further upfitter customization is possible by ordering the Cab Chassis as a “Cutaway,” available without a back wall and roof.

Sprinter Extreme concept has super strength

The Sprinter Extreme concept has also been equipped with a Scattolini ScattoMaax “Tipper Bed” for expanded capability in a variety of environments. Available as a part of the MasterUpfitter program, this unique bed is already available to customers and allows the Sprinter Extreme to dump over 5,200 lbs. of payload to either side or to the rear. This three-way tipping capability provides added flexibility to an already convenient platform.

RENNtech just finished up their latest Mercedes-Benz project, this time with a focus on the beloved SLR McLaren. On its own, the SLR McLaren stock is a beast, but RENNtech up the power. This particular rare example is so raw and so visceral at speed that it’s at that very brink of being an untamable yet insatiable beast on the road. The massive power and torque gains demand 100% of the drivers attention when accelerating anywhere between half and full throttle. It’s truly an experience that can’t be captured any other way than being strapped in the driver’s seat. Until that day comes, check out a short clip of this RENNtech transformed SLR.

RENNtech SLR McLaren modifications:

This particular vehicle is now pushing out an astounding 755 HP and 735 LB-FT through the 5.5L Supercharged V-8.
The individual performance upgrades include ECU Tuning, Stainless Steel Long Tube Headers, Intercooler Upgrade Kit, Larger Pulley, Transmission Upgrade and 100% Locking Limited Slip Differential.
For more details, click here.

RENNtech | SLR McLaren

For the 2015 SEMA Show in Las Vegas, RENNtech will be featuring an all-new Project Car to stun the Mercedes-AMG Tuning Industry. After winning the Mercedes-Benz Mission: Metris Van Challenge at the 2014 SEMA Show with their astonishing DJ Van, RENNtech now unveils their latest project car, the AMG GT. Located in the Optima Alley, outside of the North Hall and competing in the annual Optima Ultimate Street Car Invitational, RENNtech plans to set yet another standard with their well-known R- Performance Line upgrades. The R1, R2, and R3 performance packages are established as the perfect balance between performance and value to satisfy all customer desires.

RENNtech Mercedes-AMG GT

The RENNtech AMG GT Project Car is equipped with newly developed performance upgrades such as; ECU Upgrade, Coil-over Suspension, Downpipes with Sport Cats, and much more. For aerodynamic enhancements, RENNtech designed an all-around aerodynamic package, consisting of Splitter, Diffuser with Exhaust Tips, Rocker Panels and Adjustable DTM-Style Wing. The AMG GT sits aggressively on a custom set of RENNtech 10 Super-Light 3-pc forged wheels, manufactured by ADV.1 Wheels.

This RENNtech AMG GT Project will give a hint at what to expect from RENNtech’s R-Performance Line regarding Mercedes-AMG’s newest supercar. The research and development for this mind-blowing vehicle has just begun, but this teaser shows the potential of this car.

Mercedes-Benz Vans is displaying a special DJ Van from RENNtech in the lobby of Cobo Hall during NAIAS press days, just outside of the Mercedes-Benz booth. Notable Detroit-based DJ Jenny LaFemme will be providing musical entertainment to those in the vicinity on January 12 and 13. The van features a fully-functional DJ setup and a raised roof with plenty of speakers to make its presence known.

The RENNtech DJ Van was one of four vans at SEMA in November 2014 at the Mercedes-Benz Vans “Mission: Metris” display. This gathering of concept vans was designed to be a first glimpse of the Mercedes-Benz Metris, which goes on sale in fall 2015 as both a passenger and commercial van. SEMA attendees were able to vote on their favorite concept via various social media channels. The RENNtech DJ Van was the clear winner of the Mission: Metris contest due to its striking design and overall audio/visual effects, and will be shown alongside the U.S. production versions of the Mercedes-Benz Metris at their premiere at NTEA in March.

Representatives from Mercedes-Benz Vans USA and RENNtech will be on site for product walkarounds and more detailed product information.

RENNtech Metris DJ Van

RENNtech Metris DJ Van

RENNtech Metris DJ Van

Inspired by the winged, unlimited-class rally cars of the famed Pikes Peak Hill Climb, RENNtech set about creating a GLK that could master the pack and leave the rest chewing gravel. But, this wild GLK has a few surprises beneath its menacing exterior.

Hybrid powertrains are generally associated with fuel efficiency and lower emissions. However, RENNtech has taken one more benefit of the hybrid principle to turn the GLK into a formidable performer. By combining an electric motor in parallel with the 3.5 litre V6 petrol engine, RENNtech has been able to capture the impressive torque that characterises electric motor drives, adding 54 Nm to enhance the GLK’s performance off-the-line and out of corners. Using a hybrid drive in a hill climb setting has the added advantage of maintaining thrust at higher altitudes, when internal combustion engines – which depend on ambient air – start to wheeze.

The specialist Mercedes tuning company has also worked its magic on the base 3.5 litre V6 unit, using components from the latest Mercedes-Benz high-performance 3.5 litre V6 Sport engine. These include a special intake manifold, cams and cylinder heads, to which RENNtech has added its own long-tube headers, composite air intake and RENNtech ECU software. Engine output is up to approximately 350 hp, augmented further by the electric motor from the hybrid drive.

The additional 72 volt drive is run by 12 volt plug-in batteries. RENNtech is currently working on a nickel-hydride solution with regenerative charging for additional range.

“The GLK Rally Racer Hybrid is a fully-functioning test bed,” explains Hartmut Feyhl, founder and President of RENNtech. “We will use this vehicle as a proof-of-concept, which we will develop and enhance throughout next year.”

“With the Rally Racer, we have really increased the car’s performance,” continues Feyhl. “Together with the more aggressive, sporting look, we have created a powerful and exciting package.”

It is also worth noting that, despite the performance enhancements, RENNtech has succeeded in improving the fuel economy of the Rally Racer compared with the original version, “proving that high performance and efficiency can coexist,” adds Feyhl.

Bearing in mind that the Rally Racer is built for speed on tough terrain, RENNtech opted to forego creature comforts, cutting the weight of the standard GLK by removing most of the sound insulation and replacing the Mercedes-Benz seats with lightweight carbon-fibre buckets. Engineers also fitted a full roll cage and moved several components towards the rear of the vehicle to create an almost perfect 50:50 front/rear weight distribution for improved handling on tight, demanding rally stages.

Another significant handling modification comes from the custom coil-over suspension. Made to RENNtech specifications by suspension supplier KW, the package allows for adjustments in height, rake, damping rate, camber and toe-in.

Extra stopping power is provided for the Rally Racer courtesy of an in-house RENNtech brake combo featuring massive 412mm, 2-piece rotors with 8-piston callipers at the front, and 356mm discs grabbed by 4-pot callipers at the rear.

Lightweight 20 inch 3-piece, 5-spoke RENNtech wheels in a “Sniper Gray” anthracite finish, clad in NT05 275/40 20 Nitto rubber at the front and NT05 315/35 20 at the rear, fill the prominent wheel flares that underscore this GLK’s performance potential.

Although extensive exterior revisions were made to accommodate the larger wheels and brakes and to widen the track, the focus of bodyshell modifications was enhanced aerodynamic efficiency. RENNtech used the latest in Computational Fluid Dynamics (CFD) software to develop the package. The front splitter, rear diffuser and lower side skirts help direct airflow underneath the GLK Rally Racer to reduce drag and produce added downforce, while improving high speed stability at the rear. The rear wing elements also serve an important aerodynamic purpose and add emphasis to the aggressive edginess of the original GLK design. From a visual perspective, RENNtech engineers successfully melded their aerodynamic modifications with the flared wheel arches to create a powerful side line that highlights the dynamic thrust of the Rally Racer.

“The GLK was a great starting point for this project,” says Hartmut Feyhl, “It has excellent underpinnings for performance tuning and I think the overall look really suits it.”

“The GLK gave us a great deal of scope for bringing together form and function. For the RENNtech GLK, performance may have been the primary goal, but it also looks the part,” he adds.

It’s not everyday you seen an SLR on the road, and even more rare to see and SL convertible. But to see a bright yellow one driving down your street, you have better odds winning the lottery! This particular Yellow Super Car was tuned by Renntech with upgraded headers, exhaust, brakes, intercooler. The results of Renntech’s hard work, an SLR that outputs 750hp and 735 ft/tq.

All that was left was to strap a set of 20×9.5 21×10.5 ADV05 Deep Concave’s finished with a matte black center and gloss black lips and inners to create the ultimate hyper car. This SLR is as good at turning heads as it is reducing rubber into thick black strips on the pavement. Source: ADV.1

A RennTech powered Mercedes SLR, title the L4P SLR777, set a new quarter mile world record time for a Mercedes powered Mercedes-Benz.  The L4P SLR777 did the quarter mile sprint in 9.76  seconds at 140.8mph or 226km/h. The L4P SLR777 project is a team collaboration project between Platinum Motorsport, RennTech, MACarbon and Exotics Boutique.

The L4P SLR777 is the only Mercedes-Benz McLaren SLR with Mansory Renovatio bodykit installed outside of the Mansory Factory.  Back in October, the SLR completed the quarter mile in a mere 10.29 sec at 134mph. The new time sets the bar for competitors even higher and reconfirms the statement that this is the world’s fastest SLR.

Source: GTSpirit

Platinum Motorsport, RENNtech, MACarbon and Exotics Boutique partnered together to create the world’s fastest SLR, running the 1/4 mile in a mere 10.29 seconds at a speed of 134 mph. Nicknamed the L4P SLR777 it is the ONLY SLR with a Mansory Renovatio Body Kit done outside of Mansory Factory. Platinum Motorsport finished off the exterior of the SLR with a very special new Liquid White paint. MACarbon was contracted for all the custom Carbon Fiber interior pieces, and Platinum Motorsport finished the entire interior in black suede and fitted the car with custom 20 inch Agetro M140 Monoblock wheels.  For those of you that want to see the world’s fastest SLR in person, it will be making an appearance at this year’s SEMA Show.

RENNTECH SLR Performance Upgrades

-ECU Upgrade

-Pulley

-Sports Catalytic Exhaust Upgrade

-Stainless Sport Sound and Performance SLR Mufflers

-Stainless Steel Headers

The RENNTECH SLR headers are developed and tested completely in house. They’re hand built from mandrel-bent seamless tubing, CNC machined stainless flanges, and include integrated o2 sensor mounting locations. The addition of these headers creates a deep distinctive yet harmonious sound which is entirely unique to any other sports car on the road.

RENNTECH latest second generation intercooler pump; Dual kit, plus larger front intercooler. (intercooler pump flows an impressive 8.7 G.P.M. @ 11.6 P.S.I. compared to the OEM pumps 3.00 G.P.M.)

RENNTECH SLR Transmission Cooling Track Kit

-CNC machined, Larger Transmission Oil Pan

-Transmission Oil Pump

-Large Transmission Radiator

RENNTECH Motor Sport Suspension Package 4

-Racing Coilovers with 3 way adjustability and remote reservoir (for better cooling)

-Race technology shocks

Custom Front Hydraulic Lift kit with Remote

-The HLS 2 (Hydraulic Lift System) provides additional road clearance for lowered vehicles by raising the front axle suspension via the push of a button. When expanded, a range of up to 45 mm of lift is produced, thereby helping sport cars avoid road clearance difficulties such as speed bumps, road construction, etc. The system contained within the rear of the vehicle and is actuated by a push button on the optional remote (there by eliminating the need for any interior wiring).

RENNTECH Mercedes 722.6 Five Speed Transmission upgrade

-With increased engine performance it becomes necessary to further improve the drive line components, most importantly the transmission in order to ensure maximum power is transmitted to the drive wheels without transmission slippage. This cannot be realized with software and only truly be accomplished by an internal mechanical upgrade to the transmission hardware. Our upgrade leads to improved shift response, shift timing and greater drivability under extreme conditions without sacrificing around town comfort. Our mechanical upgrades provide years of trouble free operation and have been tested to in vehicles producing over 800 hp and 1000 lb/ft of torque. The transmission is reassembled using all new gaskets, seals, o-rings, electrical connectors as well as a new transmission pan filter.

RENNTECH Performance differential, Super-Lock LSD

-Functions as a traditional open differential in low and normal-load situations, transforming smoothly into a 100% full lock as loads rise.

RENNTECH SLR Performance Brakes

-16.2″ Front Brakes, 8 piston calipers

-14.2″ Rear Brakes

-High-Performance Brake Pads

-Braided Steel Lines (front and rear)

Thanks to Dan and L4P for the tip.

For more than 21 years, RENNtech has been a foremost authority on Mercedes-Benz tuning and offering a complete line of performance products for Mercedes-Benz, AMG and Maybach vehicles. Their latest offering is for the Mercedes-Benz SLS AMG and gives the already speedy SLS and extra 20 HP and 20 LB Foot of Torque.

Designed and engineered in house specifically for the Mercedes SLS, RENNtech’s long tube headers feature high quality, tri-metal, 200 cell sport catalytic cells and are ceramic coated to reduce heat in the engine compartment as well as combat against thermal stress.

The long primary tube design allows for improved low end torque resulting in improved off the line and bottom end performance. The reduction in exhaust system back pressure and free flowing design also dramatically improves overall performance with a head turning exhaust note for a bark as wicked as its bite.

SLS (C197) Stock Performance: 563 HP @ 6800 RPM; 479 LB-FT @ 4750 RPM

Gains from RENNtech’s long tube headers: +20 HP; +20 LB-FT

In 2008, RENNtech unveiled the GLK350 Hybrid Pikes Peak Rally Car, a concept vehicle which won the 2008 SEMA Show Mercedes-Benz tuner build off competition. This vehicle was designed not only to turn heads as a show car, but to serve as a proof-of-concept and testament to their dedication to a core concept; performance without compromise. Fast forward nearly 3 years, countless automotive trade shows, numerous track events and extensive real world miles; the GLK Pikes Peak project has been completely revamped and restyled for a final tour in 2011 with Mercedes-Benz USA.

Upon completion of the US tour schedule, the GLK will retire to a place of honor in the Mercedes-Benz Classic Vehicle Museum located in Irvine, CA as part of their permanent collection. This will be the second vehicle prepared by RENNtech that has found its way into the hallowed halls of the Mercedes-Benz Museum Collection, the first of which was the E60 RS project car built for comedian Jerry Seinfeld.

When approached with the opportunity, RENNtech completely revamped the vehicles exterior and collaborated once again with 3M Commercial Graphics Division to complement the GLK’s aggressive exterior styling. This original body kit was entirely designed and engineered by RENNtech in-house, using the latest in Computational Fluid Dynamics (CFD) software and rapid prototype capabilities. The concept behind the restyling was to not only completely change the vehicles appearance, but utilize vinyl materials in finishes rarely seen in the automotive world. 3M chose the RENNtech GLK as the showpiece to revel their latest product line of 1080 Scotchprint ® textured automotive vinyl wrap. This preprinted, 3.5 mil dual cast film was applied to nearly every exterior surface of the vehicle in a stunning combination of brushed steel (1080-BR201) and black carbon fiber (1080 CF-12) with subtle red pin stripping to further accent the vehicles bold lines.

The GLK350 Pikes Peak Project was unveiled to the public during Mercedes-Benz’ first leg of their tour schedule at the Pittsburgh International Automotive Show February 10-13th, 2011. Additional stops on the tour schedule include Milwaukee, Cincinnati, Cleveland, Kansas City, Minneapolis and Denver. After its time on the road, the vehicle can be seen at the Mercedes-Benz Classic Vehicle Museum in Irvine, California.

RENNtech worked with and was supported by several companies that can be seen below.

• Mercedes-Benz
• 3M
• KW Suspensions
• Geoff’s Curtain Walls
• Nitto Tires
• Optima Batteries
• JRD
• Schroth Racing
• Technicar
• Seibon

Until only recently, RENNtech has offered a line of proprietary, one-of-a-kind carbon fiber aerodynamic upgrades for the Mercedes CLK Black Series to a small number of exclusive clientele; one of the first being Indy Car driver Tony Kanaan. They recently finished yet another complete package installation and have decided to bring them to market due to the increased interest and popularity of them.

Their Mercedes-Benz CLK 63 Black Series carbon aero upgrades include their proprietary full carbon fiber front splitter, rear diffuser, DTM rear wing, Carbon air box with vacuum chamber and front carbon brake air ducts. All of RENNtech’s components are manufactured in high quality, full carbon fiber available in either matte or gloss finish to suit individual desires.

These components are the result of countless hours of design and testing by their in house design and engineering staff to integrate seamlessly within the original body work and offer improvements in vehicle performance and handling.

Carbon Front Splitter: Front lip spoiler offers aggressive front end styling and increased down force for improved handling. Integrated into the flat panel underbody tray are functional channels which allow cooling air to be directed to the front brakes to significantly increase brake cooling and reduce heat fade and pad wear.

Price $2450

Carbon Front Brake Air Ducts: The front brake air ducts were designed in conjunction with our front splitter to dramatically increase cooling air flow to the front brakes reducing brake fade and pad wear under the most extreme driving conditions. These bolt on components require no modification to the brake heat shield and are crafted in full carbon fiber.

Price $1250

63 Carbon Air box: RENNtehc’s redesigned full carbon air box incorporates a restyled carbon vacuum chamber box. By optimizing the path and increasing the volume of incoming airflow, our carbon air box is able to offer gains up to 10 hp, in addition to serving as an attractive under hood showpiece.

Price $2795

Carbon Rear diffuser: The rear diffuser is the companion component to the front splitter and functions to decrease drag and increase down force by improving the underbody airflow and its transition to ambient air. As with the front splitter, the diffuser is the result of countless hours of design and testing, but isn’t just for looks. Integrated into the true double decker rear diffuser are air channels to dramatically reduce turbulent underbody air as well as a dedicated channel to direct air to the rear differential oil cooler, thus decreasing thermal stress on drive line components and allow for significantly cooler operating temperatures

Price $3250

Carbon DTM Adjustable Rear Wing: Offering aggressive styling and functional performance; fully adjustable DTM style rear wing is designed to work in conjunction with the OEM lip spoiler and improves rear down force and stability at higher speeds.

Price $3350

Front & Rear Adjustable Camber Bushings: Proprietary rear suspension bushings allow drivers to adjust their car’s handling for different tracks and styles of driving, ensuring that the car’s tires maintain maximum grip for proper alignment, better braking, and improved cornering.

Price: Front $1250 Rear $945

A while back, we told you about BRABUS and their work creating the Vanish Mercedes SL65 AMG Black Series – a model that noted a power boost of 130 hp over the factory output and as a result, sat pretty at the 800 hp mark.  Not to be outdone, RENNtech just sent us details of their tuned version of the SL65 AMG Black Series, which takes the already consummate model and boosts output to… wait for it… 805 horsepower.  That’s 5 horsepower more than the BRABUS, allowing those in the RENNtech camp to sit smugly back and gloat in the fact that their tuning package is clearly superior to their competitors.  Making the magic happen is RENNtech’s SL65 Black Series Performance Package 1, which includes ECU/TCU tuning, a dual intercooler pump upgrade and sport mufflers.  Pricing starts at $16,390, while a RENNtech transmission upgrade and limited slip differential are optional extras to compliment the newfound power at your disposal.

Before I start getting hate mail from BRABUS owners, let me make it clear that I wasn’t being serious above.  I’m not recommending RENNtech over BRABUS or vice versa – 800 horsepower or 805 horsepower, both are going to be one hell of a ride, and you really can’t go wrong with anything that’s got 800 plus horses under its hood.  To see more of the RENNtech Mercedes SL65 AMG Black Series, check out more pics in the gallery.

Update:

RENNTECH has teamed up with Domani Motors to create a show stopping SL65 AMG Black Series.  Since the release of RENNTECHs Performance Package 1 for the Black Series, it has created quite the buzz within the international tuning market.  Domani Motors hired on RENNTECH to outfit their pearl white Black Series, which now modded produces a staggering 805 HP and 1000 LB-FT of torque at the crank.

RENNTECH’S performance Package 1  for the Black Series includes ECU/TCU tuning, Dual Intercooler Pump Upgrade, and RENNTECH Sport Exhaust.  This particular vehicle was also equipped with a Transmission Upgrade and 100% Locking Rear Differential from RENNTECH.  The RENNtech differential is based on OS Giken’s line of Super-Lock LSD which functions as a traditional open differential in low and normal-load situations, transforming smoothly and gradually up to 100% full lock as loads rise. The Super-Lock LSDs clutch packs make the unit incredibly quiet and smooth, without the kind of chatter usually associated with limited-slip cars.

While we’re on the subject of Mercedes G-Class tuning, RENNtech has unveiled new renderings showcasing a potential variant of the SUV that they’re considering for future production.  Details of the G Wagen are relatively limited, but the company says it’s inspired by 30 years of G-Wagens and will feature a diesel powerplant (in addition to the various cosmetic enhancements you see above).

We’ll keep you posted if any new details are released; in the meantime, you can check out a pair of renderings showcasing the chrome-endowed model below (click either to enlarge).

Just when you thought you’d seen the last of RENNTECH’s work on the Mercedes SLR McLaren, the company is back tuning the supercar yet again, unveiling what they call the “777 Concept.” The model is being introduced to celebrate the 20th anniversary of RENNTECH, and as such, it shows fantastically the magic RENNTECH-tuned models are capable of.

Seven hundred seventy-seven horsepower; a top speed of more than 210 miles-per-hour; extensive lightweight aerodynamic body components; and a limited production of just 20 units – this is just a sampling of what customers of the RENNTECH 777 concept have to look forward to.

According to Hartmut Feyhl, president of RENNTECH: ” Last year, it was a coincidence that we were releasing a

new, 695 hp performance package for the 65 series AMG

cars at around the same time. We sent out a press

release that said ‘HP War Not Over’. This year it is the same timing again, and we have something much more extreme to

announce for our 20th Anniversary.” He adds: “This 777 concept is really an all-new car that makes use of the advanced carbon fiber chassis of the SLR McLaren. It can be described as a street-legal track car, or something closer to what the enthusiasts were hoping for from the SLR, originally – which is more a successor to the McLaren F1.”

If you’re interested, the first of the RENNTECH 777 concepts is being built now, with pricing available on request. For a small preview of what to expect, however, keep scrolling for a pair of photos highlighting the model (click either to enlarge), followed by the full press release detailing its various attributes.