• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Stock exhaust, go straight to 3" stainless or do U bend delete first?



you will not really get any noticeable gains from a cat back on these cars. They flow fine up to 350whp which is a huge supercharged build.
 
Is this thread serious? Catback's do nothing for performance. Get a Downpipe if your broke.

I like 4 doors.
 
might as well go full 4". step it up one more time after the downpipe so you can have something really worthwhile.
 
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