flowmaster 40 series - Pontiac GTO Forum
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post #1 of 9 (permalink) Old 09-07-2005, 08:47 AM Thread Starter
 
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flowmaster 40 series

Has anyone replaced there mufflers with flowmaster 40 series. If so did you have to do any modifications. I bought a pair and 3 local exhaust shops in my area refussed to install them, claiming they will not fit.
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post #2 of 9 (permalink) Old 09-07-2005, 10:30 AM
 
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i have the new Super 40's, 3inch in and 3inch out...they fit just fine, however, i have an 05.
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post #3 of 9 (permalink) Old 09-07-2005, 12:29 PM
 
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I have a pair of the super 40's on my 04, I got the 3 in and 3 out with both outlets to one side of the muffler, it was tight but they did go up there. I also cut out the resinator chambers and it really sounds good.
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post #4 of 9 (permalink) Old 09-07-2005, 02:14 PM
 
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I've got 'em on mine. Sounds GREAT! Going for headers next!
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post #5 of 9 (permalink) Old 09-19-2005, 11:51 AM
 
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put 40 series on my 04 last friday, sounds great. did it my self, however i've been doing custom exhaust for 16 years
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post #6 of 9 (permalink) Old 09-19-2005, 09:50 PM
 
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anybody got a sound or video clip on how those sound on your car?
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post #7 of 9 (permalink) Old 09-20-2005, 01:46 PM
 
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Sound clips please????

http://media.putfile.com/2K4GTO61

For the sweet sound of power,

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post #8 of 9 (permalink) Old 09-28-2005, 06:41 PM
 
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Is your sound clip with the flowmaster super 40's?...Do they make a complete kit for the 05 GTO
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post #9 of 9 (permalink) Old 09-29-2005, 08:32 AM
 
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I bought the mufflers, they welded them on, and put the Magnaflow tips on....IMO they look better than stock!! Sounds way better also! I don't believe they make a bolt on kit yet...

Dave
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