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How much louder is the Hi-flow cat than stock?

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Old Apr 11, 2006, 06:05 AM
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How much louder is the Hi-flow cat than stock?

What about the addition of a down pipe? This would be with a greddy EVO2 catback. See, my wife said no more crap done to the car. If she can't hear it she won't know.
Thanks
Old Apr 11, 2006, 06:09 AM
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Im running the WORKS hi-flow cat with WORKS downpipe...its a little louder than the stock...if youre running a stock downpipe, youre not going to hear it that much.
Old Apr 11, 2006, 06:17 AM
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I'm running works hfc with hks downpipe, could'nt notice a increase in noise level vs. the stock cat
Old Apr 11, 2006, 06:31 AM
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It's not a huge difference in sound. If you really listen to the sound of the car you will probably be able to tell but, the wife probably won't.
Old Apr 11, 2006, 10:02 AM
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I went from stock to the Ultimate Racing 3" HFC and it sounded the same. I already had a 70mm DP and 3" CB exhaust though so it wasn't exactly quiet in the first place.
Old Apr 11, 2006, 10:38 AM
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Originally Posted by AC556k
What about the addition of a down pipe? This would be with a greddy EVO2 catback. See, my wife said no more crap done to the car. If she can't hear it she won't know.
Thanks

LOL, let her know that the mods aren't "crap" they serve a purpose and the parts you get will be of high quality and well made.
Old Apr 11, 2006, 10:45 AM
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I'm kinda in the same predicament. Does anybody know if the Buschur 3" TBE with a Magnaflow muffler and high flow cat sounds close to stock or any alternatives?
Old Apr 11, 2006, 11:10 AM
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Can you say ***** whipppppppppppppppppppeeeeeeeeeddddddddddd.

J/K I know how it goes. Good luck
Old Apr 11, 2006, 11:17 AM
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Just do it...if she says, "Wow honey, your car sure sounds louder, did you change something after I told you not to?"

Just say, "Nope".

What's she going to do, crawl under the car?
Old Apr 11, 2006, 11:24 AM
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Originally Posted by Rnm
I'm kinda in the same predicament. Does anybody know if the Buschur 3" TBE with a Magnaflow muffler and high flow cat sounds close to stock or any alternatives?
let you know in a week or two ... just got mine in the mail yesterday
Old Apr 11, 2006, 11:27 AM
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Originally Posted by bigfishs
Can you say ***** whipppppppppppppppppppeeeeeeeeeddddddddddd.

J/K I know how it goes. Good luck

Old Apr 11, 2006, 11:52 AM
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Originally Posted by byron3636
let you know in a week or two ... just got mine in the mail yesterday
Please do, I am so tired of choking my car with the stock exhaust...
Old Apr 11, 2006, 12:08 PM
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Originally Posted by AC556k
What about the addition of a down pipe? This would be with a greddy EVO2 catback. See, my wife said no more crap done to the car. If she can't hear it she won't know.
Thanks

GROW SOME *****, tell the wife it's your car and you can do what you want! My gf used to nag me about my modding, but i told her im paying for the car, i can do what i want...you get all those clothes, makes up accessories...why can't i do the same to my car. just make it loud
Old Apr 11, 2006, 12:20 PM
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Originally Posted by AC556k
What about the addition of a down pipe? This would be with a greddy EVO2 catback. See, my wife said no more crap done to the car. If she can't hear it she won't know.
Thanks

I got the same exhaust with Test pipe and downpipe. Its not significantly louder at idle, the real difference is at WOT.
Old Apr 11, 2006, 12:58 PM
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Originally Posted by AC556k
What about the addition of a down pipe? This would be with a greddy EVO2 catback. See, my wife said no more crap done to the car. If she can't hear it she won't know.
Thanks
Tell her you'll stop modding your EVO if she stops shopping.

I added a Helix HF cat with the Helix downpipe and HKS exhaust. Sounds the same as when I had the stock cat on.


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