MikeZ28

iTrader: (1)

Just picked up flowmaster muffler with 3 inch input and dual 3 inch outs. I think the intermediate pipe on my car is 2 1/4 or 2 1/2.

Can I get the intermediate pipe to weld to the 3 inch input on the flowmaster?

Any issues with doing this or should I get a 3 inch intermediate pipe?

Thanks

MikeZ28

iTrader: (1)

So no one can tell me and 2 1/2 pipe will weld to a 3 inch inlet on a muffler without any adjustment? I have never done this before. Is this ok should I not do this?

built91Z28

You wont be able to weld a 2.5 inch pipe directly to a 3 inch muffler. You can a reducer at about any auto parts store though that tapers from 2.5 inch to 3 inch.

MikeZ28

iTrader: (1)

Thanks! I know it will not be a direct fit. Is it ok to do this or should I get a 3 inch intermediate to get into the muffler? any better performence?

built91Z28

Using a reducer to go from 2.5" to 3" is perfectly fine. As far as performance gain from an all 3" intermediate pipe, I'm not sure on that. I know on my GF's camaro (stock TBI motor, not sure 305 or 350) a complete cat-back Flowmaster kit with 3" I-pipe had a much throateir sound than stock. She drives so slow that I cant tell you about performance though

MikeZ28

iTrader: (1)

Great just what I need to know. Thanks for the help!

Brad5117

what i would do is take it to an exhaust guy or shop and have them bend u up a short piece that will go from 2 1/2 to 3