Dynomax VT Muffler
06-05-2010, 11:05 AM
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Car: 87 Firebird Formula, 97' GMC Sierra
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Dynomax VT Muffler
Anyone try these yet? I've been wondering about em since I saw an ad. Was considering running em on my Firebird, but wanted to see if anyone's actually tried em yet. I saw some clips on Youtube, but most were trucks or were of poor quality, so they didn't help much. If they aren't worth it, I'll just go with a conventional muffler.
06-05-2010, 03:20 PM
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Re: Dynomax VT Muffler
something concerns me with a valve opening in the exhaust considering most exhaust has a tendency to get dirty or may keep the valve from opening fully given time but what do i know? im durn sure not an engineer
Last edited by Mike Massey; 06-05-2010 at 09:05 PM.
06-05-2010, 05:16 PM
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Car: 87 Firebird Formula, 97' GMC Sierra
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Transmission: T-56, 4L60E
Axle/Gears: 4.10 Posi, 3.42 Posi
Re: Dynomax VT Muffler
Well, I'm sure not an engineer either, lol, but that's pretty much what held me back from fully trusting it. I would think the spring, and that whole assembly itself I guess, would fail at some point as conditions change.
06-07-2010, 10:13 PM
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Re: Dynomax VT Muffler
not a fan of this at all. just another thing to mess up eventually.
06-07-2010, 11:21 PM
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Car: 87 Firebird Formula, 97' GMC Sierra
Engine: LT1, 4.3 Vortec
Transmission: T-56, 4L60E
Axle/Gears: 4.10 Posi, 3.42 Posi
06-08-2010, 12:20 AM
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Re: Dynomax VT Muffler
he doesnt have it on the car yet.Hes waiting to have his y pipe and the rest of his exhaust done but in sure he will post a sound clip.I cant wait to hear it cause i`ve been wanting one myself.
Sorry to answer for you mike.hope you didnt mind.
Sorry to answer for you mike.hope you didnt mind.
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06-08-2010, 05:10 PM
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Re: Dynomax VT Muffler
i also dont like the idea of the flapper, eventually it will rust up and stick, either open or closed or in the middle somewhere.
its more of a gimmick for some quick sales, little more.
its more of a gimmick for some quick sales, little more.
06-22-2010, 03:04 PM
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Re: Dynomax VT Muffler
I think this muffler is pretty neat. Maybe the metal inside is corrosion-resistant. And I heard that they offer a lifetime warranty so if that's true I wouldn't mind getting this muffler when the time comes. It's perfect for when you're hauling a bunch of ladies in your car and gotta keep it quiet to keep em comfortable, but when they're gone you can open it up and let her roar. 
Last edited by musclecar70sfan; 02-23-2011 at 09:22 PM. Reason: typo
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