Why did you choose Renntech over other tune?
Two friends of mine have Weistec turbo upgrade CLS 63s with catless DP, upgraded intercoolers and ice trunk tanks. B
Obviously my car is not as fast as they are. But my car did beat a custom tuned E63 S with catless down pipes at Slipstream even though I'm running stock cats and stock downpipes.

Two friends of mine have Weistec turbo upgrade CLS 63s with catless DP, upgraded intercoolers and ice trunk tanks. B
Obviously my car is not as fast as they are. But my car did beat a custom tuned E63 S with catless down pipes at Slipstream even though I'm running stock cats and stock downpipes.

All of the tunes for these cars are around the same price give or take a few hundred dollars, go with Renntech.
All of the tunes for these cars are around the same price give or take a few hundred dollars, go with Renntech.
The Best of Mercedes & AMG
Last edited by Davidkuo0330; Sep 5, 2015 at 03:53 PM.


