Can I expand a 2" inlet muffler to 2.5?

[Myself]

I've come across a supersprint muffler posted for 150obo on local craigslist. (seems cheap for the condition and muffler)

Seller contacted me back and mentions inlet is 2"

If I expand the inlet to 2.5 will it bottleneck? I'm assuming the internals are mated specifically for the 2"

[pandaboo911]

Probably not. You can expand a pipe a few mm with a pipe expander but half an inch will take some cutting and welding.

[Myself]

I can go get it bored in that case, still wondering if the internals meant for a 2" inlet from the get-go would still work as I know some mufflers have bigger internal tubes than the inlet

[steve68]

muffler shop can do it, they have a hydraulic bender and expander,

[nando]

just get a 2.5" muffler. even if you made it fit, it's still only 2" on the inside.

[goskidmark]

Yes you can, for less than five dollars.

http://www.summitracing.com/parts/wlk-41958/overview/

[Myself]

i just decided to go with the proper sizing muffler even though i've always wanted a supersprint. 2" internals will bottleneck severely even if I were to bore the muffler to 2.5

[TobyB]

2" internals will bottleneck severely

at about 6500 rpm...

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