Interesting your passenger side is tighter, mine is too. 3" here as well all the way to the tails. Also, I have the Dynomax Super Turbos mentioned and IIRC I just fitted the 16" in there but it's not optimal. The sound is about right though and if I want to lay on the ground I can open the dumps. If I had it to do over again I'd look into the Ram Air Restorations oval exhaust systems.
