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Flowmaster or Not

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Old 07-15-2003, 02:28 AM
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Default Flowmaster or Not

I have a 2001 Chevrolet Silverado Extended Cab Z71 with a 5.3 V8.
I just put on true duals with 2.25 inch piping with two flowmaster 40 series mufflers. But it sounds like ****. Very quiet and raspy. My V6 with the same exhaust was louder.
I want the loudest and deepest exhaust I can get What should i do?

Steve
Old 07-15-2003, 03:47 PM
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Default Re: Flowmaster or Not

steve you might should get some kind of offroad pipe with no cats or high flow cats.Is it dumped or do u have tips out the back-its probably going to be raspy with true duals.
Old 07-15-2003, 03:51 PM
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Default Re: Flowmaster or Not

it might also be those 40 series muffs-you might want to think about replacing them with something different-I used to have a 2001 silverado ext cab with flowmaster 2 chamber dumped and it roared-i know have a 2002 z28 MTI car runs low 11's-so im happy!!Be more than glad to assist you though!!
Old 07-15-2003, 04:25 PM
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Default Re: Flowmaster or Not

Wow, thats wierd. Usually dual Flowmaster "40's" sound great. Especially on a V8 truck. Are you sure they didn't put some generic brand on there?
Old 07-15-2003, 07:51 PM
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Default Re: Flowmaster or Not

they do sound nice on the ls1 but offer no performance gain over stock. it is still very quiet with cats and manifolds
Old 07-15-2003, 08:43 PM
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Default Re: Flowmaster or Not

I love how my flowmaster cat-back sounds. Although I will probably swap it with something like Loudmouth in the futute.




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