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fryzia23 · 06-15-2019, 04:21 PM

Its normal. My ark exhaust did the same exact noise off throttle. VQ hiss. Most pronounced at the X pipe section. Cant do anything about it unless you go with factory cats.

06-15-2019, 04:21 PM	#4 (permalink)
fryzia23 Enthusiast Member Join Date: Dec 2010 Location: new jersey Posts: 452 Drives: 2011 MB 370Z NISMO Rep Power: 1246	Its normal. My ark exhaust did the same exact noise off throttle. VQ hiss. Most pronounced at the X pipe section. Cant do anything about it unless you go with factory cats.