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      11-28-2012, 11:20 PM   #1
HeartMD's Avatar

Drives: 2011.75 MW,ZCP E92
Join Date: Apr 2011
Location: CT

iTrader: (0)

Hissing sound with akra evo

Hey guys,
I tried searching but only found one other thread mentioning this issue but no real answer.
I just had my akra slipon upgraded to the full evo with the akra front pipes, and have noticed this Hissing sound coming from the rear around 3-4krpm.
Has anyone else with this exhaust noticed this distinct sound or is this an abnormal sound ie: leak?
2011.75 E92 MW/BB extended,ZCP,ZP2,ZCV, IPOD,BMW APPS, Heatedseats,6MT, Edition Black Chrome Grills & Side Gills, CF splitters, CF performance spoiler, CF mirror caps, Turner black anodized pedals, Akropovic Evolution exhaust w/CF tips, Still Undecided on tune, AFE Pro5r, AFE intake scoops, LUX H8
2009 E92 JB/Black 335 xdrive (retired)