RENNtech just posted a new wallpaper/poster image of the GLK 350 hybrid rally racer from the SEMA show - don't forget to check this car out at the LA Auto show this weekend!

Mercedes' tuner build-off is in full swing, and YOUR VOTE decides the winner. Text GLK73 to 48457 to vote RENNtech, or visit www.MBUSA.com/GLK to vote online.

RENNtech's new ECU upgrade improves power, throttle response, and top speed for US Smarts.

California BMW tuner Dinan just introduced a new stage 2 ECU flash that boosts hp to over 380!

Volcanic burnout caught on tape.

What would you say about an SLR powered kart? Well, we don't think that would be possible, and even if it did, it would be pure suicide. The members of the SLR Club however

Performance industry look at what "being green" means to performance tuners.

New video of Mercedes-Benz SLR McLaren 722GT trackday car posted on YouTube - via Autofiends.

New photos of RENNTECH's modified C63 AMG sports sedan have been posted to our Flickr site. As shown, the car features RENNTECH's latest ECU software upgrade for the C63, which (along with RENNTECH headers and sound|performance pipes) delivers almost 540hp!

Click on the link for a step-by-step map to the Mercedes SEMA project build videos.

Florida-based tuning firm RENNtech has updated its product catalog to include ECU tuning upgrades for recent Ferraris, including 360, F430, 599, and 612.

RENNTECH has posted a brochure for next year's SLR.Club Trophy events online, and it includes several hi-res pics of the SLR 722GT track car.

New 2nd generation "plug and play" Mercedes-Benz lowering module from RENNTECH.

Hartmut Feyhl, president of RENNtech and former technical director of AMG North America, along with his crew over at RENNtech modified the exhaust headers and mufflers of the

Mercedes super-tuner RENNTECH announces an E85 version of its Aixro XR50 rotary kart racing engine. Due in February.

Horsepower wars not over yet ...

RENNTECH's latest lowering module is remote-controlled, offering full-function adjustability and real-time diagnostics.

Modified Luxury and Exotics magazine let the hybrid cat out of the bag this morning when they posted the first "pics" of RENNTECH's upcoming Mercedes-Benz GLK 350 based concept car, "the Rally Dominator".

RENNTECH's new twin-engine Smart ForTwo revs to 13000 rpm and hits 138 mph!

New intercooler, larger crank pulley, and next-generation software tuning package from RENNTECH improves torque, drivability, and fuel economy.

South-Florida Mercedes tuner RENNTECH announces new ECU tuning to improve MPG.

New 20" 3 PC. RENNtech Signature series performance wheels now available for SL, CLS class Mercedes /AMG.

RENNTECH 625 hp tuning package for Bentley Continental and Flying Spur. Bentley 2" lowering module.

Comments and photos re: new 670HP PKG2 RENNTECH CL65. Features satin-ceramic RENNTECH Signature 3 pc. wheels, lowering module, and rear decklid spoiler.

RENNTECH has updated its website to include new features and updated price lists.

RENNtech releases it's new for 2008 line of 3 pc. high-performance wheels in 20", 21", and 22" sizes.

Florida tuning firm RENNTECH debuts new performance upgrades for Mercedes-Benz CLK63 Black Series.

RENNtech is named the exclusive US sales and service center for the Mercedes-Benz SLR McLaren 722 GT trackday car (built by RML in England). http://www.RENNtechMercedes.com

Mercedes-Benz supertuner RENNtech launches new TaG package for rotary kart racing engine.

Mercedes super-tuner RENNtech is now offering performance products fr Porsche. This article discusses the Cayenne, but the other Turbo Porsches are apparently next in line for the RENNtech treatment.