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This is a discussion on Which to get - Flowmaster 70 series or Dynomax Super Turbo for quiet? within the Exhaust forums, part of the Performance category; I'm getting rid of the Gibson single-in/single-out, sideswept exhaust on my 5.3L Avalanche as the resonance between 1600-2200 rpm is ...
I'm getting rid of the Gibson single-in/single-out, sideswept exhaust on my 5.3L Avalanche as the resonance between 1600-2200 rpm is unacceptable. I'm looking for a quiet performance exhaust and have narrowed it down to the Flowmaster 70 series or Dynomax Super Turbo. I will be getting the new muffler welded in at the Gibson flange pipe and getting custom-bent tailpipes.
The Flowmaster 530722 muffler is a 3-inch single-in, 2 1/4-inch dual-out.
The Dynomax 17789 muffler is a 3-inch single-in, 3-inch single-out.
Does anyone have experience with either of these two mufflers and can you offer any feedback?
not yet, about to get the 70 series put on tomorrow sometime i think... no tips or anything, just the muffler... heard its mellow and not real loud (may not be loud enough for what i want) I"ll let ya know what I think, and maybe i can get some sound clips... we'll see..
2001 Silverado LS 2WD 5.3L 4L60E 212K Miles
Billet Grille Clear Turn Signals K&N Cold Air
Painted Handles & Mirrors 2" Drop Shackles
18" Silverado Wheels '03 Tail lights Magnaflow Exhaust 12" sub
Yes, please come back and report what your results are.
its on, and so far, im lovin it... cant really hear it at idle, but when you get on it, its a nice mellow rumble.. sounds cleanGoing to try to get some sound clips this weekend
not too loud... but i been turning heads lately, its just a Single in dual out.. no pipes or tips, just the muffler
2001 Silverado LS 2WD 5.3L 4L60E 212K Miles
Billet Grille Clear Turn Signals K&N Cold Air
Painted Handles & Mirrors 2" Drop Shackles
18" Silverado Wheels '03 Tail lights Magnaflow Exhaust 12" sub
So the muffler just dumps into the air, no tailpipes out of it? And it's still quiet at idle? Interesting!Originally posted by 2001RedChevy
its on, and so far, im lovin it... cant really hear it at idle, but when you get on it, its a nice mellow rumble.. sounds clean
not too loud... but i been turning heads lately, its just a Single in dual out.. no pipes or tips, just the muffler
What about performance - any noticeable performance difference?
Please post sound clips if possible....thanks!
well I havent been able to get sound clips quite yet..
as far as performance goes... i honestly would say i may have a lost a tad of low end, but thats it, it will still roast the tires
yeah, its quiet at idle, you can barely hear it, then when you get on it, its sound nice and clean, and as far as mileage goes, I dunno yet, we'll have to see... with my old DF40, it actually got better, so i was hopin this would do the same, but time will tell... i'll try to get sound clips asap... later
2001 Silverado LS 2WD 5.3L 4L60E 212K Miles
Billet Grille Clear Turn Signals K&N Cold Air
Painted Handles & Mirrors 2" Drop Shackles
18" Silverado Wheels '03 Tail lights Magnaflow Exhaust 12" sub
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