Identifying A Mufflex Muffler
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From: Joplin, Missouri
Car: '91 Z28
Engine: L98 H/C/I - 400whp
Transmission: T56
Axle/Gears: Moser 12-Bolt(4:30 w/spool)
Identifying A Mufflex Muffler
Previous owner of my Camaro claimed I had a 4" Mufflex exhaust system in the car... though most of the piping was custom. Well, I cut out the exhaust two weeks ago to make room for the suspension parts and ended up putting in a new exhaust setup(just got car back 10 minutes ago, 2.5" True Duals). To be honest, I think the Mufflex sounded more aggressive than the Bullets do.
Now that I have the old muffler in hand, I was gonna put it up for sale as a few people have shown interested in it. Here's the thing I'm curious about. I went out to take pictures of the muffler and found that it says 'Flowmaster' across it. The Muffler is a 4" in/out and is pretty darn big... and I know Mufflex owns/works for Flowmaster so I'm curious as to if Mufflex does stamp their name on the products or just the Flowmaster name.
I can't find a Part Number, just a Patent number. I took a few pictures. If you have any information, let me know. BTW: If your interested in buying, all I kept of the original exhaust was the Muffler(4" in/out), the tail pipe, and the 4" pipe that wraps up around the rear axle.



Now that I have the old muffler in hand, I was gonna put it up for sale as a few people have shown interested in it. Here's the thing I'm curious about. I went out to take pictures of the muffler and found that it says 'Flowmaster' across it. The Muffler is a 4" in/out and is pretty darn big... and I know Mufflex owns/works for Flowmaster so I'm curious as to if Mufflex does stamp their name on the products or just the Flowmaster name.
I can't find a Part Number, just a Patent number. I took a few pictures. If you have any information, let me know. BTW: If your interested in buying, all I kept of the original exhaust was the Muffler(4" in/out), the tail pipe, and the 4" pipe that wraps up around the rear axle.



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Joined: Jun 2007
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From: Bham AL
Car: '92 RS
Engine: 357ci
Transmission: G-Force t-5
Axle/Gears: 4.10 10bolt mini spool
Re: Identifying A Mufflex Muffler
Mufflex is just an exhaust shop in Trenton N.J.they have made a name for themselves is all. They don't do anything yer local shop cant do and they don't actually make mufflers, just muffler systems then sell them on the net at a way inflated price.
Thread Starter
Senior Member
iTrader: (4)
Joined: Apr 2006
Posts: 552
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From: Joplin, Missouri
Car: '91 Z28
Engine: L98 H/C/I - 400whp
Transmission: T56
Axle/Gears: Moser 12-Bolt(4:30 w/spool)
Re: Identifying A Mufflex Muffler
So technically, I do have a Mufflex system. Even on Mufflex site they mention they work with Flowmaster.
Joined: Aug 2006
Posts: 12,805
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Identifying A Mufflex Muffler
yes it is a mufflex system using a flowmaster muffler, you can also get a spintech. they are the only outfit that sells the 4" kits ASAIK. Im going to make my own when im ready, not worth 700 bux
Thread Starter
Senior Member
iTrader: (4)
Joined: Apr 2006
Posts: 552
Likes: 0
From: Joplin, Missouri
Car: '91 Z28
Engine: L98 H/C/I - 400whp
Transmission: T56
Axle/Gears: Moser 12-Bolt(4:30 w/spool)
Re: Identifying A Mufflex Muffler
Well, my question has been answered! Thanks guys.
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