I've currently got svt headers with 2.5" cat and flex but have svt flex back which is only 2.25. I want borla but the cost of a borla sorts shipped to Australia is pure rape. I can get the borla muffler and a mbrp resonated to my door for 200 and get local shop to do pipe work. Burned to know dimensions of which muffler will fit.
There was actually a discussion of this in the SVT section. I thought I had the dimensions saved some where in my pictures, but that picture must have been deleted some time in the past. See if this thread helps you any. >>Click here<<