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Old 11-07-2020, 02:08 PM
PontiacJim1959 PontiacJim1959 is offline
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Join Date: Dec 2019
Location: Gastonia, NC
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Quote:
Originally Posted by sjdiesel View Post
Asking here because the exhaust section doesn’t get a lot of traffic.

Can you take a pair of 2.5” dynomax ultra flows (17222) mufflers and open them up to fit 3” exhaust? I was looking at these mufflers in person and it appears that they have 3” (or very close to 3”) internals. Wondering if anyone has done this or knows if the internal baffling is the same diameter between the 2.5” & 3” mufflers.
You can go to most any auto parts store and get an exhaust reducer. Just read what the reducer actually is as some will state the OD dimension and others the ID dimension. Just slip them on and then muffler clamp or weld them together.

My guess on baffling is that if 2 mufflers are the same external dimensions, that the baffling will be the same, just different pipe size for your hook-ups.