What's the best exhaust to pair up with an X pipe?
10-13-2011, 05:31 PM
#11
Join Date: Oct 2011
Location: TEXAS
Posts: 5
I like HushPower ProSeries Shorties for my 2007 GT 4.6. Check out HushPower.com; They gained about 15RWHP. But which ever you choose get a quality dyno tune to go with any mods. I got an average of 37.4 out of my car with the same mods I have just added a 93 Octane Dyno tune. It helps to tune. Got the hushpowers plus a throttle spacer a k&n filter only and 4.10's. Still not sure where my dyno tuner pulled the extra horsepower from because my car only made 240's RWHP with these mods. Then took same car to HPP Racing and tuned it they got me in the 280's?? As far as drone I can't say because these are the only axle backs I have run?
10-13-2011, 06:56 PM
#12
Join Date: Oct 2011
Location: TEXAS
Posts: 5
I like HushPower ProSeries Shorties for my 2007 GT 4.6. Check out HushPower.com; They gained about 15RWHP. But which ever you choose get a quality dyno tune to go with any mods. I got an average of 37.4 out of my car with the same mods I have just added a 93 Octane Dyno tune. It helps to tune. Got the hushpowers plus a throttle spacer a k&n filter only and 4.10's. Still not sure where my dyno tuner pulled the extra horsepower from because my car only made 240's RWHP with these mods. Then took same car to HPP Racing and tuned it they got me in the 280's?? As far as drone I can't say because these are the only axle backs I have run?
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