2" Muffler On A 3" System?

[LexDelta]

Currently I dont even have an muffler on my 3" system, but I do have the original 2" 'double exhaust' muffler.

Would it be a good idea to put the 2" muffler on the 3" system, the flang's match up and everything, im just worried about the exhaust flow being restricted, plus the exhaust is a double barrel so there would be a bit of added turblance in the muffler.

Just looking for some advice.

I can post pictures if it helps.

[lachlanw]

if it bolts on then put it on and see if you notice the difference . if it sucks then pull it off and buy a real muffler

[LexDelta]

Ok well Ive put the 2" muffler on and its running ok, and for some reason a bit smoother, its certainly not stalling when pulling up to intersections when the engines cold like it was before. At least it seems that way for now.

The only issue is the sound, its considerably quieter, which is good I guess cause the cops wont nag me as much, but I wouldnt mind it being a bit louder/deeper...

Im just wondering if this 2" muffler setup could be a issue for the engine, which could be tuned for a 3" system? Im not sure..

This is how it was before, just a simple, defectable, pipe:

Now with the 2" muffler: (I believe this is the stock muffler?)

And this is a future 3" inlet muffler with 4" cannon on the back, Im hoping to put it on to get a more desired sound, but needs a flange welded onto it which was cut off for the pipe in the first pic before I can attach it.

Edited February 3, 2010 by LexDelta

[grandmasterb]

It shouldn't really make that much of a difference with back pressure but personally id just wait till you can fit the 3" muffler correctly and not worry about the 2"

Its strange that the 2" muffler you have (if its stock like you say) already has a 3" flange???

[mad082]

the flange probably isn't 3", but it probably bolts up. when i got my 33 it had a 3" front pipe bolted to a 2.5" cat bolted to a 2" catback. then before i get a new cat i had a 3.5" catback system bolted to that 2.5" cat. generally all the bolt holes are pretty close

[LexDelta]

the flange probably isn't 3", but it probably bolts up. when i got my 33 it had a 3" front pipe bolted to a 2.5" cat bolted to a 2" catback. then before i get a new cat i had a 3.5" catback system bolted to that 2.5" cat. generally all the bolt holes are pretty close

Yes thats exactly right, the flange's match up, even tho the pipes are different diameter.

Im glad its not something that will cause any major problems, but I will keep the deathly quiet 2" on for a bit while I work on getting to the 3".

Thanks for all the feedback, if anyone else has concerns it would be good to hear!

Edited February 4, 2010 by LexDelta