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Full Cat Back vs. Axle Backs

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Full Cat Back vs. Axle Backs

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Old 04-13-2007, 11:07 PM
  #11  
howarmat
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Default RE: Full Cat Back vs. Axle Backs

The over axle pipes are fine. You can pick up 7-9 HP with a o/r x pipe or 1-2 less with the pypes o/r h-pipe.
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Old 04-13-2007, 11:27 PM
  #12  
mygt500
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Default RE: Full Cat Back vs. Axle Backs

Sarcasm is a funny thing....LOL! You know it does that is way you have it! Right?
ORIGINAL: blueherd02gt

So my 3" exhaust don't add any gains


ORIGINAL: mAnYsTyLeS

YOU'RE WRONG! It's 2.5HP!

ORIGINAL: billyjo

full exhaust replacement and then i had to go back to the stock cats and now have a axel back and there was sad to say no difference. the stock h pipe and pipes works very well. so it might be around 2 horsepower
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