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I just put one on my SS last weekend and HOLY CRAP! The sound is night and day! It is noticably louder ... it even made the stock exhaust louder!
If you want to know about performance gains .... stay tuned to my other thread in the "Tuning" section. We put the Diablosport Predator tuner on my car last Saturday at OCD Customs and did a baseline (stock) dyno run and then picked up a peak of 20hp from the install of the programmer alone. This week I added the K&N Aircharger and Edelbrock x-pipe (L99 car) and GMPP off-road axle-back. I am going back tomorrow to do some more pulls ....
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