Resulting Sound from Adding HFC to Stillen Cat-Back Exhaust

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Sep 3, 2013 | 04:30 PM

Mg0143

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Resulting Sound from Adding HFC to Stillen Cat-Back Exhaust

Hey everyone,

I'm having trouble finding a thread that answers my question. What change in sound (deepness, loudness etc.) will result if I were to add HFCs to my Stillen cat back on my 2013 G37S sedan?

Sep 3, 2013 | 05:12 PM

da mayor

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you will probably hear a little more rasp but the sound will get slightly deeper

Sep 6, 2013 | 07:44 AM

ANMVQ

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plus one for rasp. I heard the same, Isnt there a thread on here about the Stillen CBE with HFC's( video)

Oct 18, 2013 | 03:30 PM

Daddy Fat Sacs

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whatever you do..DONT go ART pipes unless you love rasp! learned that the hard way

Oct 18, 2013 | 03:35 PM

Glover998

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youtube it !

Oct 18, 2013 | 05:01 PM

Q8y_drifter

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From: Kuwait

My previous setup was Stillen catback and Invidia HFCs. VERY little rasp, most of which went away once the cats and exhaust warmed up.

Oct 19, 2013 | 10:53 AM

advan37

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Quote:

Originally Posted by Daddy Fat Sacs

whatever you do..DONT go ART pipes unless you love rasp! learned that the hard way

100% true .

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