1977 Chevy Nova Emission Legal Exhaust System
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Now that we know exactly where the catalytic pipes are going to route, it’s time to get the pre-assembled Flowmaster H-pipe assembly into place. Through dyno testing Flowmaster has confirmed what we’ve seen in most of our own projects: H-pipes and X-pipes make the same power in most applications. H-pipes give that classic muscle car thump we love though. View Related Article
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