This E 550 coupe is sporting a host of RENNtech upgrades including our ECU tune for biturbo engines, our complete RENNtech big brake upgrade and coil over suspension package. Rounding out the exterior, this E class sports our latest 19″ forged monoblock wheels in a stunning brushed finish. Our limited edition forged monoblock wheels featuring [...]

The second SLS roadster to come through RENNtech has just been completed leaving with a RENNtech exhaust upgrade and performance ECU tune. The car now sounds as fast as it looks thanks to the RENNtech long tube headers, secondary cat bypass and sound & performance with x pipe now installed. The red & black exterior [...]

A highlight video featuring a recently completed RENNtech SLS Roadster featuring our package 2 performance upgrade (626 Hp / 530 TQ) which includes our long tube headers, ecu tune, sound and performance exhaust. Exterior enhancements highlighted in the video include our full carbon fiber front splitter, carbon rear diffuser with integrated back up camera and [...]

RENNtech is pleased to announce that we now offer ECU upgrades for Mark 1 (2006-2010) and Mark 2 (2010-up) Mini Coopers. Our proprietary ECU tuning software was developed in house along side our BMW Tuning program and offers significant  gains in performance for both the “S” and John Cooper Works (JCW) version Mini’s making an [...]

Via: WFLA/NBC NewsChannel SARASOTA, Fla. – Imagine owning a car that attracts so much attention people jump in it and pose for pictures when you park it on the street. A one-of-a-kind, entirely chromed-out Mercedes SL 600 could be yours. After owning it for four years Florida businessman Doug Mansfield has decided to auction it [...]

RENNtech powered SLR once again shattered its own 1/4 mile record of 10.29 @ 134 mph (215 kmh), with an astonishing 9.76 @ 140.8 mph (226 kmh) run! The SLR (L4P SLR 777) features full compliment of RENNtech performance and exterior modifications in addition to a full Mansory Renovatio body kit; making this SLR not [...]

RENNtech’s 2012 CLS63 broke the 11 second barrier by running the 1/4 mile in 10.98 @ 129.40 mph (208 kmh)! This officially makes it the world’s fastest CLS63. Our latest run surpasses our previous 1/4 mile time in the same vehicle with a previous record of 11.21 @ 126 mph with only a tune and [...]

Via TheSmokingTire.com: RENNtech Adds 100 WHP to CLS63 AMG   I love the aftermarket. They are the fringe chefs of the auto world. No content with the way something is made, they will take a classic dish-say, risotto – and then add crazy stuff to it like maple syrup and essence of deadly sea urchin. [...]

RENNtech is proud to announce our latest line of proprietary BMW ECU tuning for late model vehicles. RENNtech has been the foremost tuning authority on Bosch and Siemens engine control units since electronic engine management started to show up in vehicles during the mid 1980′s. Our proprietary tuning software and approach for BMW is built [...]

RENNtech limited edition forged monoblock wheels and full carbon fiber rear spoiler featured on the new C 250. Our latest wheels featuring a semi-concave design with incredibly intricate machined detail work. The wheels sophisticated aesthetics are complimented by superior strength and have been weight optimized for both the W204 and C207 chassis. These monoblock wheels [...]

2012 GTR vs.RENNtech 2012 CLS63 December 2nd, 2011 by Road Test TV We finally got a little cooler weather here in South Florida (high 60s – low 70s) and had the opportunity to make a few passes down the quarter mile in another 2012 RENNtech CLS63 at Palm Beach International Raceway. To give some background, [...]

RENNtech is proud to announce our latest ECU performance upgrade for the all new M278 engine currently in the C218 CLS 550, E550, CL550, S550 and other upcoming Mercedes models. We have been hard at work refining our performance tune for these engines and are pleased to announce our latest ECU upgrade. It’s clear that [...]

RENNtech is proud to introduce the lightest two-piece forged wheel on the market available for Mercedes-Benz vehicles. RENNtech Signature wheels feature a single barrel design and are manufactured using state-of-the-art processes. Elegant yet sporty, this forged design features much tighter tolerances than spun multi-piece wheels. The highest quality materials are utilized to ensure our wheels [...]

The RENNtech ECU upgrade is the ultimate tune for the BMW X5/X6M! Our tune allows the SUV to run an astonishing 11.99 @ 114.05 mph in the quarter mile. Our ECU also alows the M SUV to accelerate from 0-60 mph in 3.75 seconds and 0-100 mph in a mere 9.2 seconds! Our proprietary BMW [...]

RENNtech and Akrapovic Exhaust systems partnered for the 2011 Festivals of Speed hosted by the Ritz Carlton Orlando Grand lakes on Sunday, November 13th. The rescheduled event brought out a huge crowd thanks in part to the incredible location and beautiful weather. On hand was a RENNtech modified Porsche 996 Turbo as well as the [...]

European Car Magazine staff writer Pablo Mazlumian has been putting a RENNtech modified 2003 S600 rated at 650bhp through its paces and documenting the process for European Car Magazine. After upgrading to the RENNtech level 3 performance package, European car took the next logical step in the upgrade process and looked to tame all of [...]