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#1
10-30-2003, 09:08 PM
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Hi everyone.. I'm new to this forum and already have a question..
Hi There...
I'm the proud "new" owner of a slightly used, fully loaded, 2002 GTP.. I'm a longtime, mulitiple Grand Prix owner.. Going all the way back to a high compression, leaded premium gas use'n, fake hotrod smoke'n, 1969 Model SJ.. One serious torque monster.. I love my GTP except for one thing... I was admiring my car as my wife drove it away from the house.. And I noticed the exhaust note sounded like a "putt-putt 4 banger"... Is this normal ?? If so,what can I do about it.. I want a sound befitting it's musclecar looks.. Thanks... So Long...
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Building an 87 Mustang GT.. 351 bored and stroked to 383 ci.. Brodix M2 Track 1 Heads.. Turbonetics T76 Ceramic bearing Turbo.. Dynamic Racing Transmissions C4.. Car was a Whipple Supercharged 302.. Ran 11.6's at 120 on street tires.. Sould run 9.30 at 150 when done.. Now you know why I've got a Supercharged Grand Prix.. 
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#3
10-31-2003, 04:03 PM
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Exhaust note is mainly dictated by the engine's displacement and architecture ( i.e. V-Twin, I-4, I-6, V-6, V-8). In other words, there are limitations in tuning the sound of an exhaust. However, you can try to install a larger diameter pipe, as recommended by JJubeck, and install a Glass Pack resonator before it reaches the aftermarket muffler.
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#4
10-31-2003, 07:19 PM
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Hi There...
Thanks for the responses.. But that leads to another question.. On Mustangs any, ANY aftermarket mufflers you put on them.. Will cause "resonation".. Where you get this droning sound inside the car.. Do after market stuff for GP's cause this problem ??? Thanks.. Jeff So Long...
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Building an 87 Mustang GT.. 351 bored and stroked to 383 ci.. Brodix M2 Track 1 Heads.. Turbonetics T76 Ceramic bearing Turbo.. Dynamic Racing Transmissions C4.. Car was a Whipple Supercharged 302.. Ran 11.6's at 120 on street tires.. Sould run 9.30 at 150 when done.. Now you know why I've got a Supercharged Grand Prix..
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#5
10-31-2003, 08:38 PM
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Pretty much. I have the MSP catback that uses Hooker Aerochamber mufflers. The Drone is bad at 2k rpm, I like it and have gotten used to it
I think the Borla catback is one of the few that people say doesnt drone bad. Good luck Tim
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