I have the opportunity to get brand new 3 inch TTI H pipe and tailpipes. The price difference is significant. I will be saving $750 if I buy the 3 inch stuff.
So my question is......Would there be any downside to running 2 1/2 head pipes into a 3 inch exhaust system? Concerned about any goofy sounds or reduced exhaust velocity that would negatively affect performance.
I don't see a downside to going to a 3 inch system, nor should there be any issues with it going up from 2 1/2. I had a full 3 inch from the headers to the bumper, tight fit, but it wasn't a big deal with the TTi pipes.