CD5 Exhaust

hey guys, was planning to get a 2.5" mandrel bent exhaust system from catback. just wondering if i use a 2.25" muffler, will i be affecting my power gains? thanks

Well, there's also the slight problem of making 2.5" pipe fit into a 2.25" inlet. You're just making things difficult. Plus, if you're paying for mandrel bends, why would you restrict things by putting on a small muffler? The point is to make things flow as evenly as possible...

(Incidentally, unless you're going around a greater than 90 degree bend, the flow restriction from a press bend isn't that much in the grand scheme of things...)

If you already have a 2.25" muffler, run a 2.25" pipe. Small to big to small will create more of a pressure block than small to bigger straight out... (if that makes sense)

Any place should easily be able to adapt 2.25" to 2.5" for you, so that's not a problem.

In terms of performance, I doubt there would be a difference as the smaller diameter is on the muffler side, and because there is lots of negative pressure as it is near the outlet you shouldn't have restriction/bottleneck problems at that point anyhow.

get a full exhust system dude, extractors, down pipe, new cat, new piping and your muffler
should sound sweeeeeet

ekkk.. serious dundy.. i got the works.. i thought it would sounds good at idle.. sounds stock to me ahhaha

kenny

nah planning to get my zorst in pieces. first piping from catback, then high flow cat, then flex pipe? extractors can wait lol. I want a twin loop muffler n e waiiz so dont think it will sound all that good