Yeah Ive just got the 4.0 I6, probably don't need a pipe wider than 2.25, the exhaust setup inlets and outlets go from:
front pipe Outlet Outside Diameter: 2.5 in,
to the converter Inlet Inside Diameter: 2.5 in, to converter Outlet Outside Diameter:2.25,
to the muffler Inlet Inside Diameter:2.25 in to the muffler Outlet Inside Diameter: 2.25 in
to the tail pipe Inlet Outside Diameter:2.25 in to the tail pipe Outlet Outside Diameter: 2.75 in
Those are pulled from the specs of all the pipes copied and pasted from their respective pages and if I'm getting it right they all should fit just a hair one over the other and be able to be clamped down.
also curiously the front pipe just lists the inlet as quantity 1.? those are universal I presume?
Yeah I also looked at the borla cat-back exhaust system but that one was 480-something just for the muffler and tail pipe! :O!
this setup is costing me 272 + tax I think? in total with placing 3 different orders (to maximize the amount the coupon takes off) with free shipping! awesome!