Which exhaust system is the best one?

boardingnath · 09-29-2009, 03:44 AM

Has anyone got the link to the thread on returning to stock cats?

AH370Z · 09-29-2009, 05:15 PM

Quote:

Originally Posted by boardingnath

Has anyone got the link to the thread on returning to stock cats?

Hi-Flow Cats too loud!

Quote:

John
I saw your posts about exhaust being too loud with the HFC.

I'm someone thats a bit concerned about the constant humm through the cabin.

Just going with the Stillen CBE and stock cats, is there a change in cabin noise in normal cruising?
Can you tell that the exhaust has been upgraded with the stock cats

Thanks
--------------------
Hi there,
I have a pretty good knowledge base of after market exhausts and can tell you that the 370z reacts a little different than other cars with the addition of HFC's. It is night and day. Taking off the Berk cats and re-installing stock eliminated cabin drone completely and quieted the car by over 75% while still sounding a little "sporty" with just the Stillen CBE. If you are concerned with drone, cabin noise or anything of the sort, stay away from HFC's. Good luck!

So i've made my decision

evse82 · 09-29-2009, 06:27 PM

Hmmm yeah but I wonder if it is just personal preferance. I had just the hitech CBe on my 350 and found it to be pretty quiet, I sometimes wanted more. So I'm guessing the stillen would be very similar in terms of noise so HFCs might make it just right for me lol

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09-29-2009, 03:44 AM	#1 (permalink)
boardingnath Base Member Join Date: Aug 2009 Location: Home Posts: 37 Drives: 370z On Order Rep Power: 15	Has anyone got the link to the thread on returning to stock cats?

09-29-2009, 06:27 PM	#3 (permalink)
evse82 Track Member Join Date: Nov 2008 Location: Melbourne, AUS Posts: 609 Drives: Black 370z MT Rep Power: 17	Hmmm yeah but I wonder if it is just personal preferance. I had just the hitech CBe on my 350 and found it to be pretty quiet, I sometimes wanted more. So I'm guessing the stillen would be very similar in terms of noise so HFCs might make it just right for me lol