LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Flowmaster drones too bad

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Old May 12, 2010 | 05:29 PM
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Default Flowmaster drones too bad

My old cars sounded great with flowmaster catbacks, and I still love the sound of my car now. But the drone is horrible. I'm talking about worse than my old firebird that had dumped 1 chambers.

Car has a hotcam and shorty headers.

The options I'm thinking about are these.

A-Install my old spiralflow into the ipipe hoping to lower the inside resonance

B-replace the flowmaster with a hooker muffler

C-buy a gmmg off local forums


Guys with cammed cars and hooker or gmmg, how is the drone? How loud at idle and how raspy up top?

I don't like magnaflow so it's not an option.
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Old May 12, 2010 | 05:31 PM
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Gmmg and run 93 oct.
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Old May 12, 2010 | 05:34 PM
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i switched out my flow for a dynomax race muffler 3in center inlet/outlet and i love it
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Old May 12, 2010 | 05:47 PM
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Originally Posted by jsteele90
i switched out my flow for a dynomax race muffler 3in center inlet/outlet and i love it

ran a 3" dynomax bullet dump off a Y-pipe, for stock internals its nice but it still drones. It would be alot louder with a cam, i suggest chambered mufflers to tune the car.
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Old May 12, 2010 | 06:34 PM
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Originally Posted by jay7199
Gmmg and run 93 oct.


(sorry, that was good.)

GMMG x2.
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Old May 12, 2010 | 06:36 PM
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http://www.summitracing.com/parts/WLK-17223/

what i run. very mellow around town and at idle but screams at wot
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Old May 12, 2010 | 09:52 PM
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dynomax or thrush
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Old May 13, 2010 | 01:45 AM
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Was on a TPI car, not a 4th gen, but I loved the Hooker I had. It sounded great at idle. Didn't have a drone, or at least nothing like the flowmasters or the Loudmouth I have had. At WOT it was loud and perfect in my ears. I am going to try a Vortex (Cherrybomb) crossflow soon, but if that doesn't suit me, I will get another Hooker muffler.
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