Im sellin my old apexi n1 (just the axle back) for 150 (is that a fair price???) and have just a striaght pipe set up... uhum err with a cat too. I just want the most quiet non/minimally restrictive set up. I was thinking of a highflow cat to either a type R muffler or magnaflow. or second idea is use a glasspack or resonator instead of the cat??? I don't live in Cal. so no emissions/inspections to worry about.

Give me all you got... I know i am not supposed to put wtb and what not on here, but just wanted to see and hear your guys ideas.

 

add a high flow cat, any type you choose will work fine except obx mine is junk, resanator, then ws2, magnaflow, vibrant, get something oval and should be good to go