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 upon the same rock solid foundation as our Mercedes line and is completely unique and independent from our Mercedes tuning program.

RENNtech tuning software is developed and tested in house to ensure significant gains in performance and throttle response without sacrificing your daily driver BMW's reliability. By modifying ignition timing and throttle mapping, optimizing air/ fuel ratios, increasing the top speed limiter, improving engine cooling and modifying boost mapping for turbo charged vehicles; RENNtech performance software unleashes your BMW's true potential.

A little teaser video:

Our X5M tuning software has already generated quite a buzz and put down some pretty impressive numbers and ran the 1/4 mile in 11.99 @ 114 mph

Visit our ever expanding product catalog on our website (and receive an additional 10% holiday discount through January 15th 2012) for additional information and pricing on our BMW tuning products: BMW | RENNTECH MERCEDES

 

nice to see you guys getting into Bimmers! Think i found a typo on your site:

http://www.renntechmercedes.com/www/node/633
Gains:

• 360 HP @ 5700 RPM / 473 TQ @ 4300 RPM???

i assume you meant 373TQ, right? Either way, those are some great numbers for just a flash! Good luck!

 

correct- thanks for the heads up as we are in the process of inputting new product and all the little hiccups that come along with that. If you click on the image in the right hand corner you can view the dyno sheet by clicking on additional images. The numbers listed on our dyno sheet at the wheels are 274 HP and 288 TQ stock to 351 HP and 379 TQ at the wheels