2.5"or 3" High flow cat??

[shortdog273]

I'm still deciding. I need some opinions and advice. I want one without the airtube, but I noticed they cost alot more.

[knowledgefreak]

well im putting on a 3" carsound/magnaflow today with 3" 45 degree bends.

Ill let you know how i Like it. I would say 3" because the stock cat already is 3" on one side and smaller on the outside. So depending on what size pipe your using with your cat back exhaust is what i would say you should use.

[shortdog273]

I'm going with the 3" S pipe. Switching the 90 degree pipes for 45 degree from jcwhitney.