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Old 05-24-2013, 12:19 PM   #12
657 RWHP + 585 Torque
SCHUSS's Avatar
Drives: 13' HPE 700 ZL1, IOM vert, M6
Join Date: Feb 2013
Location: South Windsor, CT
Posts: 1,100
I put mine in and very rarely is it closed. Once in awhile i'll close it on the highway to quiet it down then very quickly open them back up because I miss the growl!
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