2004 31 Ss
06-20-2005, 10:18 AM
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2004 31 Ss
My 04 31 Sonic Has Twin 496 Ho Motors....i Was Thinking Of Removing The Exhaust Restrictor Plates.....but A Little Concerned About Doing This With Corsa Quick And Quiet Muffler System ....has Anyone Else Done This On Their Sonic??? .....if So What Kind Of Gains Did You See?...how About Water Reversion Problems?...is The Exhaust Sound Alot Louder???
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