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> Thrush Mufflers?
GlennCMC70
post Jun 13 2008, 02:59 AM
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i see in Jegs that they carry Thrush mufflers. i'm looking for a pair of 3in/out mufflers for my 2500HD to swap in place of the OEM muffler.
the one i'm looking at is PN 289-17657.
anyone know if these are worth it at the $30 price tag?
my other consideration is the Magnaflow 642-12259. they are $87 each.
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trackbird
post Jun 13 2008, 03:13 AM
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Those thrush mufflers are the "turbo muffler" style (I used them on my 1977 3/4 ton Chevy). It has two or three louvered passages in them and they flow "ok", but not particularly great. If you are desperate for a muffler, they work (but can be loud). If you're looking for effeciency gains, buy a Dynomax (who makes Thrush) Ultraflow or a Magnaflow "straight through" design. Your other choice is out of stock. Hooker Max Flow also flow well.

What's the goal of this swap Glenn?
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Posts in this topic
Glenn98ZM6   Thrush Mufflers?   Jun 13 2008, 02:59 AM
trackbird   Those thrush mufflers are the "turbo muffler...   Jun 13 2008, 03:13 AM
Glenn98ZM6   i'm just looking to get a increase of power. i...   Jun 13 2008, 03:22 AM
trackbird   I thought those were the "super turbos" ...   Jun 13 2008, 03:38 AM
Rob Hood   Glenn, On my HD I'm running this FM, #530504 ...   Jun 13 2008, 03:48 AM
BigEnos   I had an edelbrock cat-back on my z28 and it was j...   Jun 13 2008, 10:36 AM
Glenn98ZM6   i ordered this one today. i should get in on after...   Jun 14 2008, 02:28 AM
Rob Hood   How do you plan to route the tailpipes? Mine are ...   Jun 14 2008, 02:56 AM
Glenn98ZM6   i plan to find a 2nd OEM rear section and use two ...   Jun 14 2008, 03:27 AM
Rob Hood   hmm...dumps under the body are very loud...as in ...   Jun 14 2008, 04:14 AM
Glenn98ZM6   yep. there will be lots of road tests and trailer ...   Jun 14 2008, 04:18 AM
Rob Hood   slight hijack - I am now convinced that under most...   Jun 14 2008, 04:24 AM

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