u will love the sound of the mufflers with headers and a h-pipe!! i have mac headers, mac h-pipe, and the same dyno max super turbo's and it sounds GREAT! when i put the stock h-pipe on for inspection i notice a big difference. its less throaty, and not as loud, not to mention the power difference. enjoy
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89 GT AOD w/ shift kit, B&M rachet shifter, Trickflow intake, Crane (E-type) cam, 70Tb, 75MAF, 1.6 Rockers, Pulleys, MAC headers and H-pipe, Dynomax mufflers, K&N, 3 core radiator, white face gauges, custom interior, cobra R rims
MY89GT