Posts Tagged ‘tuned’

RENNtech tunes the SL65 Black Series

Wednesday, August 5th, 2009


RENNtech is making progress on one of this year’s most sought-after supercars, the Mercedes-Benz SL65 Black Series. Initial ECU programming results on the twin-turbo V12 were remarkable. And after further testing and development RENNtech massaged 630 HP / 765 LB-FT at the wheels on the in-house dyno. In the case of this particular dyno run that’s 67HP/69LB-FT over stock. Helping to plant that tire-liquifying power to the ground is a custom 100% locking limited-slip differential.


RENNtech will continue to pump up the SL65 Black Series and expects to have even more substantial numbers as R&D progresses. Stay tuned!

R.A.T. (RENNtech Auto Tuner)

Friday, July 17th, 2009

RENNtech has introduced a new revolutionary Auto Tuner for Mercedes-Benz vehicles. For the first time, you can reprogram your ECU simply by plugging in the new R.A.T. (RENNtech Auto Tuner). No need to remove the ECU!! Once the reprogramming is complete (about 90 seconds), you can easily switch between stock, for street use, and tuned, for the track, with the flick of a switch.

The R.A.T. is shipped out preprogrammed with RENNtech’s list of firmware and can be sent anywhere in the world. When first plugged into your Mercedes-Benz via the OBD II port, the tuner “marries” itself and uploads the proper file. If the proper file is not already available or you would like to have a custom file made, simply plug the R.A.T. into your computer. The vehicle data is sent to RENNtech and, after being tested, your new file is emailed back to you. If you lose power or the R.A.T. is disconnected while uploading the file, the tuner is designed to automatically recover the stock programming.

The R.A.T. is available for the Mercedes-Benz E55 and 2006, or earlier, Mercedes V12 Turbos. See our website for more info.

RENNTECH C63 | 11.654

Monday, February 16th, 2009




Last week, some of our RENNTECH customers spent some time running a pair of RENNTECH-tuned AMGs down Palm Beach International’s new 1/4 mile drag strip – and the results were impressive: an 11.654 time at over 120.70 mph on Nitto Invo street tires!

Watch for the timeslip below to get posted on to Dragtimes in the coming days, as well as slips from the E55 AMG that came along, and was kind enough to take some pics for us.


RENNTECH FOR SLK350 V6

Wednesday, February 4th, 2009




RENNTECH’s new $3995 performance PKG1 for the 05-08 SLK 350 boosts the output of the 268 hp V6 to over 300 hp. That’s 40 horsepower for under $4000!

This level of performance and torque comes from new RENNTECH headers and a RENNTECH ECU upgrade, which also raises the car’s top speed from the factory-limited 155 mph to over 170 mph. As the copy above states: this package will change the way you look at Mercedes’ 350 series cars.

Currently available for 05-08 SLK350 and GLK350