So if it prevents the exhaust from going back up, would it possibly reduce/prevent the hiss that can be heard from other test pipes?
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2009 PW 370Z Base MT 2009 MB 370Z Touring MT
2014 PW 370Z Sport MT // Z1 Motorsports CAI // Motordyne ART pipes V3 // AAM 2.5" True Dual Exhaust // Fatboy Shift knob (U Matte Bro?) // More to Come! 
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