diffrent diameter

[RED guy]

hi guys
currently my exhaust set up 2.5" O/R X pipe & two chambers mufflers,i found a cheap magnaflow race mufflers (used) but one of them 3.5" or 3" not sure, if i weld them on my 2.5" system one larger than the other does it hurt on performance or engine pressure???

 

[glittle75]

na, just get reducers and such and weld them up. its after your midpipe so it wont mess up the pulses. may sound a little wierd though.

 

[RED guy]

i am afraid to have problem in performance

 

[joekd]

Run an open H pipe for a bit, if you can stand that then the performance with the race mufflers will be the same ofr better

 

[RED guy]

i think i well lose some torque with open exhaust

 

[joekd]

You will, but only low end. It will also gain power in the higher RPMs

 

[RED guy]

but i dont wana change the exhaust so no body sure if one larger muffler well effect or hurt something?