Stillen Headers + Berk HFCs self-install report

wstar

Well it feels great, but the stock car felt great too As I said earlier, I can definitely feel a bit more pull in the high rpm ranges. When shifting "manually" with the paddle shifters, I keep hitting the rev limiter accidentally because 7.5k comes around quicker than I was used to from the first month of driving (you can hear me do that a couple of times in the vid I think, where you hear a double-peak in the rpms just before the shift). But butt dynos are butt dynos, so it's not conclusive.

Based on the sound, vibration/rasp issues, and just having a good look at the stock exhaust, I know that stock cat-back is the major holdup right now, probably robbing me of some of the headers'/cats' gains.