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Can an exhaust system make as much horsepower as open headers? To find out, we brought our ’86 Mustang project car to Magnaflow   Performance Exhaust   to have a trick X-style crossover system tested against a traditional   H-pipe and wide-open headers.
H-Pipe, X-Pipe, 1, 2, 3...

Can an exhaust system make as much horsepower as open headers? To find out, we brought our ’86 Mustang project car to Magnaflow Performance Exhaust to have a trick X-style crossover system tested against a traditional H-pipe and wide-open headers.  View Related Article