Thread: ARK PERFORMANCE INC: 370z DTS TRUE DUAL EXHAUST SYSTEM AKA ARK TYPE 1
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Old 06-21-2010, 01:39 PM   #7 (permalink)
TeamARK
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The Hissing in most cases is not created by the exhaust but by testpipes and HFC's. Confirmed by HFC and testpipe companies on this board
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