Originally Posted by Sidez
I believe he answered that in the thread he linked, but i personally am about to order the renntech kit as well... why renntech over evosport even though evosport is cheaper and is likely to give a larger performance gain?
It is because renntech is a proven company and they warranty their work, but evosport on the other hand has some mixed reviews on the mbworld forums...
Well I haven't seen the reviews, but they do have a dyno result for there pulley kit, which is 36 hp gain at the wheels and as far as warranty, a pulley kit is not rocket science, it is just someone taking the R & D time and money to make some pulleys. There is not much that can go wrong with a pulley kit and the pulleys by far, yield the biggest gain, even without an ECM upgrade for the SRT6.