samahi72

I keep hearing all these claims about eliminating my muffler and putting a 4" system from the cat on back. So I thought I would ask if it is really worth it or not? What can I expect performance and economy wise?
thankyou

b.white

try looking at a kit that is turbo back u can still use your cat if regulations require it in your state.I dont think u will be happy with cat back.plus u are still running stock pipe(Down pipe etc)to the cat whats the point i put a 4'' turbo back on my 12v it runs and sounds great the bigger u go the mor mods u should have u dont want your turbo flappin in the wind. you want fast spool up

schoust

Dump the stock exhaust and save the cat (Just in case) got mine from Summit for a decent price.

DRam11

Above advice is good. Any small diameter pipe in the system will mean restricted exhaust flow.

fuel4me

when i put the bigger turbo and 4" downpipe on my truck it made it quieter then a 24 vavle i couldn't belive it.

cowboy_trucker

just go buy 6 feet of 3 inch pipe, the muffler and cat are about 5'10" cut them out in one piece and throw in the shed and you are set