2009-2020 Nissan 370Z, 2008-2013 Infiniti G37, and 2014-2015 Infiniti Q50 3.7L Exhaust Y-Pipe by ISR Performance The ISR Performance 370z / G37 Y-pipe utilizes 2.75" stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic
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The ISR Performance 370z / G37 Y-pipe utilizes 2.75″ stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic converter flanges back to the high performance velocity merge. The Y pipe then steps to 3″ stainless piping coming out of the velocity merge to the rear 3″ exhaust flange. The Y pipe also features an integrated dimpled gusset plate tying the two individual runners together for increased strength and rigidity.
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