What does this do?
Bout how much?
Low or High end gains?

THanks

 

Short answer, if you are stock, you don't need it.

 

At what point in modding would you say that it would help?

SuDZ

 

Definitely after the Y-pipe. I have the Stillen Y-pipe, intake, Courtesy B-pipe, and 5th gen muffler. My RT cat is sitting in a box. The y-pipe will give you the most gains. After I installed the pipe, I really felt the car rev from 2K-4K just like that. After changing the B-pipe and muffler, I felt even more power gains. It's not as much as the y-pipe, but it is some good useable power.

 

did the 5th gen muffler fit easily on the 4th gen?? was it a difficult install??

 

I had the same question. I was planning on doing this for some time. How well did it fit? Did it go on as a direct bolton? Is only the SE version the one that has the performance setup in it or is the only difference in that from a GLE or GXE the tip?

SuDZ