Nissan 370Z Forum - View Single Post - ARK DT-S bt.

Chuck33079 · 09-08-2013, 08:29 PM

Are you sure your new exhaust has cats and not resonators? The cats bolt up to the header. If your exhaust doesn't bolt directly to the header, you're bolting it to the stock cats. It's called a cat back because its everything from the cat back, ie the cat is not a part of it. Put up a pic of the cats on the new exhaust if its unclear. I'm sure we can figure it out.

The hiss comes from the motor. You only hear it with HFCs and TPs because the stock cats block the noise.

09-08-2013, 08:29 PM	#17 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	ARK DT-S bt. Are you sure your new exhaust has cats and not resonators? The cats bolt up to the header. If your exhaust doesn't bolt directly to the header, you're bolting it to the stock cats. It's called a cat back because its everything from the cat back, ie the cat is not a part of it. Put up a pic of the cats on the new exhaust if its unclear. I'm sure we can figure it out. The hiss comes from the motor. You only hear it with HFCs and TPs because the stock cats block the noise. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent