I think you read more about RennTech than Brabus because with RennTech you get 625 hp for $6,400 and with Brabus you get 560 hp for around $10,400.carlosfernandeznadal - 2/18/2005 2:36 PM
I read more threads from renntech than brabus in all the forums I belong.
Have you considered Kleeman, or does anybody out there know about Kleeman?LovinSL600 - 2/17/2005 12:01 PM
I would like to undertand the difference between the Brabus T12 upgrade and the RennTech upgrade to 600+ hp.
Just thinking about doing the ECU upgrade in HP but have my reservations because as far as I can tell, either would void your warranty.scottcardwell - 2/19/2005 4:12 PM
U interested of doing all that stuff to your sl600 lovin?
I have heard of Kleeman but didn't know they did the ECU upgrades. I know there are well known for their kits.
You are correct about why they offer less horsepower. They feel the RennTech horsepower is too much and destroys the life of the engine.Shinigami - 2/20/2005 10:35 AM
Brabus will offer you, I think, a 3 year warranty on any engine mods. Whilst it offers less power, it will also mean that there might be less stress on the engine, and thus it will last longer then the Renntech mod.
My dealer told me they would not honor the warranty with the RennTech upgrade.mark11 - 2/21/2005 5:58 AM
Well, well, well! I am hearing a lot about this subject lately. I believe a can answer many of your questions since I have had the RENNtech up-grades. My dealer still warrantees my car and in fact I do proudly display the RENNtech badge on the back of the trunk lid for all to see. The modifications are calculated to be well within the stress limits of the vehicle. the man making the calculations is by far one of the world's foremost experts on Mercedes high preformance. He in fact ran the Mercedes AMG racing division for aprox. 15 years! Further, this man is responsible for many of the current ideas that lead to many of the current developments in the newest SLs. Very simply, the founder of RENNtech is one of the most respected men in the world of mercedes benz. (period) This is why I optioned for the RENNtech up-grades above all others and I have been extreamely satisfied with the results. By the way, you can ruin any car with the power it currently has!! Just drive it like a moron and it will fall apart just as quick as you please. But, respect the power, drive it accordingly and you will enjoy a long-lasting experience of high preformance beyond immagination. Now go get some RENNtech rocket power!!!!!