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Old 08-05-2002, 11:46 PM   #1
M3sum
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Default Exhaust hangers change exhaust tone?

I just got the kartboy hangers and noticed that the exhaust tone sounds slightly different. Could the stiffer hangers do that? Possibly holding the exhaust that much stiffer in place so the vibration and resonance is different? Its not louder or softer that I could tell, but the tone just seems a little off from normal. Either that or I messed up something when I was wiggling the exhaust out of the old hangers but it can't be that fragile.....any thoughts?
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Old 08-07-2006, 03:07 PM   #2
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I just did this too and I was about to post to see if anyone else had this happen and I thought I should look this up. Anyway I think that because the exhaust stays in place the sound waves go straight out with out being bounced around by a swinging exhaust. Or I am nuts! But I knew the tone sounded different. It sounds so much cleaner!!
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Old 08-07-2006, 03:21 PM   #3
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Less vibration means the tone isn't being muddied by everything shaking against the soft OEM hangers. You're hearing a "purer" exhaust tone, for lack of a better word.
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Old 08-07-2006, 03:34 PM   #4
ATXWRX
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That is what I was thinking. Now my only worry is that it is going to melt my bumper. I hope that does not happen. Has anyone seen that happen?
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Old 08-07-2006, 03:38 PM   #5
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Yes, but there are shields you can bolt onto the bumper so it won't burn.
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Old 08-07-2006, 04:35 PM   #6
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Thanks. Yeah I am looking into that. I think I maybe ok without it though.
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Old 08-08-2006, 12:39 AM   #7
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This is interesting. I wonder how much different my Prodrive exhaust will sound with Kartboy hangers... tempting!
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Old 08-10-2006, 12:22 PM   #8
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My exhaust tone sounds like a new exhaust! I think the mod is well worth the money. It also keeps your exhaust stable.
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Old 08-10-2006, 01:06 PM   #9
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Quote:
Originally Posted by ATXWRX
My exhaust tone sounds like a new exhaust! I think the mod is well worth the money. It also keeps your exhaust stable.
Sounds great. How difficult was it to squeeze the harder hangers on?
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Old 08-10-2006, 06:27 PM   #10
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It is easy, all you need is some wd-40
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Old 08-10-2006, 06:49 PM   #11
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actually isn't wd40 bad for polyurethane? at least thats whats i've heard..maybe i'm wrong.

i used some white lithium grease we had sitting around in the shop on mine..slid on nice and smooth!
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Old 08-11-2006, 01:56 AM   #12
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I often wondered how the stiffer mounts would affect the sound. I figured it would be louder, with more vibration being transmitted to the chassis, and I am intending to avoid excessive noise inside the cabin. This is encouraging though.
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Old 08-11-2006, 02:24 AM   #13
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I dont think I heard a diffrence, although I think my stock hangars only had like 7k miles on them.
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Old 08-11-2006, 02:53 AM   #14
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Quote:
Originally Posted by ATXWRX
That is what I was thinking. Now my only worry is that it is going to melt my bumper. I hope that does not happen. Has anyone seen that happen?
Try the Kartboy XL hangers on the rear. That should drop the can more than enough from the bumper.

~ REVNU
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Old 08-11-2006, 08:03 AM   #15
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do any of you know how close you could get the exhuast to the bumper before it starts to melt it? my perrin is like an inch or slightly more and i want to put my kartboy hangers back on. anyone????
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Old 08-11-2006, 03:15 PM   #16
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my turboxs exhuast started melting my bumper with the stock hangers on
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Old 08-11-2006, 05:15 PM   #17
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^
Did you have the standard magnaflow style muffler or the cannister style?

I have the cannister style and it hasn't melted anything yet, then again I have a high-flow cat.
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Old 08-11-2006, 05:23 PM   #18
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I didnt notice any change in sound, except for my bitching trying to get the hangers to stretch to the required lengths.
It took me almost 2 hours for the 2 mid hangers and 5 minutes for both rear hangers. If I had it to do all over I would have only changed out the rear two and used the other two on my wifes OB sport wagon. Oh well not going to try to remove the middle ones again.
PITA, but looks great.
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Old 08-11-2006, 05:28 PM   #19
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My canister is like 5mm away from the bumper at most, and I have no scorching. Highflow cat also.

Oh, I found out AFTER I installed my hangars that lubing them up with WD40 makes them pretty easy to install.

Last edited by Honest Bob; 08-11-2006 at 06:22 PM.
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Old 08-11-2006, 05:44 PM   #20
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Mine were a PITA to install. I used the long hangers and the only difference I noticed was no more rattling against my rear diff cover. No scorching or black on my rear bumper either, I'm catless too.
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Old 08-11-2006, 10:14 PM   #21
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I have been driving around for a week now and it is not melting it. I'm like 1/2 inch from the bumper.
The tone changed quite a bit on my car, even my wife noticed.
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Old 08-12-2006, 02:42 AM   #22
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Quote:
Originally Posted by ATXWRX
I have been driving around for a week now and it is not melting it. I'm like 1/2 inch from the bumper.
The tone changed quite a bit on my car, even my wife noticed.
Did the tone change in a good way?
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Old 09-15-2006, 10:38 AM   #23
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Yeah the tone sound deep and clean. It sounds really nice.
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Old 09-15-2006, 03:21 PM   #24
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I removed the front connection on my down pipe. so nothing is in between my exhaust and the car except the kartboy hangers(no metal on metal). i belive it is a bit quiter inside the car.
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