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Old 09-06-2012, 06:41 PM   #1
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Question Dynomax Thrush, good or bad?

howdy all, im trying to decide which muffler to get for my 05 LJ cause my stock one is ripped and getting worse. I heard the Dynomax thrush turbo mufflers weren't that much louder than stock (which is exactly what i want) and not really expensive. As far as bolting or welding, i can do both so that's no issue. I guess im looking for opinions and suggestions and they will be greatly appreciated.

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Old 09-06-2012, 06:46 PM   #2
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Installing a long-arm suspension onto my previous TJ required that the exhaust system be reworked with a new muffler. My local shop recommended a Thrush and that's what I went with. The first Thrush they installed sounded really good but it was a tad too loud for my old tastes so they installed the next size up Thrush which was just right. I liked it and I've been recommending Thrush mufflers ever since.

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Old 09-06-2012, 07:51 PM   #3
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I have the Dynomax super turbo on my tj, At lower rpms 1k-1.8k its a bit deeper than stock, from 2k-3k its pretty similar to stock volume wise, then from 3k up the sound comes back in. Volume wise its not much louder than stock, but does change the actual sound a fair amount.

With my hard top on, I hardly notice its there. Sounds much better with the top off. All in all its pretty tame, and I think I will go slightly louder next time around.

As for Thrush brand mufflers, I have run a couple in the past and have always been happy with them. Had two on a old Nova with a 355 and also had one on a ...wait for it......Geo Storm!!! Sounded great on both, to be honest I was amazed how good the storm sounded.

Both are solid choices, dont think you can go wrong with either one
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Old 09-06-2012, 08:10 PM   #4
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Did u guys have a problem with the fiber glass blowing out after awhile, the Dynomax seems to be a glass pack but ive only seen it online and o wait the dynomax and thrush are two different brands, so i guess my question now is are they both glasspack and have yuo ever had a problem??
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Old 09-06-2012, 08:32 PM   #5
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Yikes, i didn't even get from your first post that we were talking about glass packs. All of my feedback was on Turbo style mufflers.

Glass packs tend to be loud and are not legal for road use in all states. Shorter really ='s louder with them as well. I have no experience with one on a 4 or 6, only V8's. I would check out YouTube if you are interested in Glass packs on a wrangler.

Do a search for Dynomax Cat Back exhaust. From what your first post indicates you are looking for, I think it would fit the bill, its what all my feed back was based on for Dynomax.
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Old 09-06-2012, 08:47 PM   #6
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yes i definitely Dont want glasspack, sorry for the confusion. Low, mild change and its mainly to replace a rotted muffler and i thank you for your advice.
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Old 09-06-2012, 08:49 PM   #7
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o yea and nice quote's

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