Quote:
Originally Posted by cajunboy2208
Alright.
I guess I had more questions than I thought.
What do I put down for my exhaust diameter?
I have Borla split rear
it comes into the muffler at 3
and when it splits into 2, it goes to 2.25
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I am not any kind of authority on exhausts. I suspect the 3" figure would be the correct value though, because it's a "choke point" (the narrowest part in the new exhaust). You're not going to get anything through the 2-2.25" pipes that doesn't go through the single 3" section first.
88Racing is more knowledgeable about exhausts though. He might notice this thread and chime in.
- Jack