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i have a 2007 G6 GT coupe 3.5 L and i was wondering how much horsepower the gtr exhaust would add? they told me between 12-22 HP depending on the engine but they wouldn't tell me when i told them i had a 3.5 liter.
THANKS!:D
 

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Da.v3
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uhhhh MAYBE 10 tops with any engine be it 3.9 3.5 3.6
 

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MonsterG6
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doesnt the site say 11?

Wait! thats with an intake to...i believe
 

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Im really interested in the exhaust system. I e-mailed them asking if it could be fitted for a 2.4l and they said it is for any engine size.

Now, im just curious if running dual exhaust on a 2.4l is overkill........any comments?


G6Whitie
 

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Im really interested in the exhaust system. I e-mailed them asking if it could be fitted for a 2.4l and they said it is for any engine size.

Now, im just curious if running dual exhaust on a 2.4l is overkill........any comments?


G6Whitie
It won't be overkill at all. They set up the muffler to mainly use one exhaust pipe until the pressure requires flow out of 2 pipes.
 
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