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HFC Rasp

Originally Posted by joshs09slvrZ What exactly causes it? I have Berk HFC/CBE and I get rasp when I really get on it...sounds like a fart can... If you ever feel

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Old 07-09-2012, 07:51 PM   #1 (permalink)
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What exactly causes it? I have Berk HFC/CBE and I get rasp when I really get on it...sounds like a fart can...
If you ever feel like changing the exhaust because of the Rasp, then I'd strongly suggest Fast Intentions Resonated HFC's with the 18" Resonated CBE. Absolutely no Rasp, Absolutely no Drone, and a very powerful low rumble at idle and a throaty roar at acceleration. I have mine with K&N Short Ram Intakes which contribute to the growl at acceleration. I have seen people drive up to the side of me and roll their windows down to listen, with lots of compliments from everyone that hears it.
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Old 07-09-2012, 09:11 PM   #2 (permalink)
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If you ever feel like changing the exhaust because of the Rasp, then I'd strongly suggest Fast Intentions Resonated HFC's with the 18" Resonated CBE. Absolutely no Rasp, Absolutely no Drone, and a very powerful low rumble at idle and a throaty roar at acceleration. I have mine with K&N Short Ram Intakes which contribute to the growl at acceleration. I have seen people drive up to the side of me and roll their windows down to listen, with lots of compliments from everyone that hears it.
Detailed Video or this is a lie.
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Old 07-09-2012, 09:25 PM   #3 (permalink)
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Detailed Video or this is a lie.
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Old 07-09-2012, 09:37 PM   #4 (permalink)
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I believe it's because CATS have much more material to them cause they surve a purpose/job like clean up the toxic stuff produced by combustion. HFC's are mostly thin, mostly straight through, so that ruspy combustion noise is no longer kept in check. Something like that.

Try running car without the exhaust system from HFC back. After a couple of days, put the exhaust system back up. The car now will sound much better.
Last edited by andre12031948; 07-09-2012 at 09:40 PM.
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Old 07-10-2012, 09:16 PM   #5 (permalink)
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Detailed Video or this is a lie.
LOL... Believe what you will. I have no inclination to prove anything to you.
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