Anyone with experience on this? How did the car run? Any noticeable gains?

I've heard a lot of mix emotions on "headers" in general, not just any specific brand. Most say that headers don't really do much with our cars. So now - anyone with experience on any headers or specifically Stillen, please let me know ASAP.

I would really greatly appreciate it.

 

if you're car is RevUp, you'll get decent gains. if it's non-rev then you'll need cams to make it worth while

 

Yes, I have '05 6MT - RevUp. . . Thanks!

 

You won't get gains immediately. With any bolt on, you need a tune to see anything more than 5whp.