3 or 4 inch exhaust??

[IDIBRONCO]

Mine's going to be 4" straight exhaust. At least it had better be. That's what's sitting on a shelf in my garage right now.

 

[saburai]

I outlined it in your email this morning, but for all others reading I would say a 2.5-3or4” adapter from the stock downpipe is the simplest route if you are sticking with the stock downpipe and want to use the psd exhaust. If you cut the flange off the stock downpipe it’s almost a perfect 2.5” OD, and a regular adapter slides over nicely.

Wes, what was the Diamond eye exhaust system that you had me order? iirc, it fit well after you welded the V-band section of the stock DP to the Diamond eye pipe. Was it a PSD PN from Diamond eye?