1957 Chevy Electronic Exhaust Cutouts Exhaust System
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The guys at GM Performance Division built the exhaust system for Project X to incorporate the Quick Time Performance (QTP) cutouts. They gave the exhaust a direct path though the cutouts when they are open and a route thought the pipes and mufflers when they're closed. QTP can supply you with a Y-pipe to incorporate into your existing system as well. View Related Article
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