Just went out for a drive and the Corsa setup is absolutely amazing. So clean sounding inside the cab. No drone at cruising speeds even with the valves open. Very throaty sounding part throttle and screams bald eagles @ WOT. Close the valves and it's stock NPP quiet.
I would definitely put the Corsa NPP in a nother league above the Flowmaster as it should be for the cost. The Flowmaster is still great for the money but I would suggest spending the extra if you can swing it!!
Quote:
Originally Posted by arpad_m
This is the sound of maximum freedom 
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