1/4 mile time
#23
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#24
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#25
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u dont think 300HP is enough??? i had a FM on my LT1 z28 and changed to a diff chambered muffler and i felt the difference which shown at the track as well. i bet there was a 20HP change. 80 series suck. not made for a high revving engine like the LS1. they are made for an engine that isnt goin to see high rpm HP but more low end torque.
#27
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Like I stated in another post. I have added a cutout and that made a huge difference. I will be adding LT's in a little. So that will help some more. I did just purchase a SLP loudmouth I system that should be here in a little, and I think that will help and get rid of the Flowmaster system in the car altogether.
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