<< Custom Bent >>
Like with a hammer?
Any reputable exhaust manufacturer has many different sizes. 2"-3.5" are very common.
A big exhaust tip costs $40 CDN where I live. I'm pretty sure a full mandrel-bent catback costs hundreds of dollars.
EDIT: This is what a catback looks like (a functional one at that). HKS Titanium Race Series 4" catback
Facebook
Twitter