Thread: MOTORDYNE ART Pipes - Review
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Old 06-24-2011, 10:22 AM   #397 (permalink)
Footloose301
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Originally Posted by Armonster View Post
Tony: someone at Z1 mentioned to me that the hissing sound I am hearing after installing the ART pipes is actually coming from the Y-pipe of my nismo exhaust rather than the ART pipes themselves. Do you know if this is true? What exactly is making this sound? It's not too audible outside of the car, but it drowns out some of the exhaust note between 3-5k rpms. I'm wondering whether this y-pipe is too restrictive or something. Or perhaps it really is just a VQ thing that I need to get used to. Any comments?
I highly doubt it's the Y pipe as everyone has hiss with these VQ's after removing stock cats. I have the HKS dual and theres no Y pipe, but a lot of hiss.
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