iloveboost
Proven Member
- 46
- 1
- Jul 25, 2014
-
Vacaville,
California
I have a 99 GST I was looking to build my own test pipe this weekend. The junk yard near me has a few eclipses but they are not GSTs. I wanted to grab an old cat and cut the flanges off it. I know the GSX has a different exhaust system but what about the other non turbo models, do they use the 2.5" piping and cat or at least the same flanges as the GST? I know the headers would be different than the turbo but I thought the diameter and cats might be the same after that. Let me know what you think.