Removal of exhaust heat shields, bad or no problem?

lag · 10-16-2003, 05:07 PM

My heat shields make my Suby sound like a car less than it is. Has anyone removed thier shields from the manifold back or which ones have you removed? I know it shouldn't be but is there any adverse effect of removing the shields?

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Cajual · 10-16-2003, 05:14 PM

When I had my ej25, I had all the heat shields torched off because they were rattling so badly. Just don't park on the grass

KD7000 · 10-16-2003, 05:38 PM

I've cut or ground off at least half the heatshields, because of incessant rattling.

I try not to park on tall grass.

-Brian

monovich · 10-16-2003, 06:59 PM

I don't have my heat shields. They rattled like crap.

subiekid · 10-16-2003, 08:16 PM

took them off when the did the motor transplant.

nitrohuffer · 10-16-2003, 08:30 PM

Whats the best way to get rid of them?

subiekid · 10-16-2003, 09:43 PM

muffler shop, they can use an air saw. the bolts will all be rusted and striped.

Legacy777 · 10-16-2003, 09:48 PM

I need to take mine off....they're driving me nuts......

Kohburn · 10-16-2003, 11:07 PM

was wondering what that noise was - rarely happens so i hadn't gotten around to checking it out yet.. maybe i can tack weld the part that is rattling to something solid..

NiTRoN · 10-17-2003, 12:09 AM

my stock header ones were rattling.. all other are fine.. wasn't really concerned because I did replace headers about month later.. now nothing rattles.. there are still all under the body and on the catalityc conv... but there i had to re-do the clamps and replace bolts..

Legacy777 · 10-17-2003, 08:59 AM

the exhaust guy that did my muffler tried to weld the shield on to the pipe and pretty much just put a nice hole in my mid-pipe.

If the bracket holding it on is rusted, you wouldn't really be able to weld it to the pipe too well. You could try though.

98GTlegacy · 10-17-2003, 12:39 PM

I was able to stop the rattling by clamping the shields down to the pipe with some universal exhaust u-clamps.

NiTRoN · 10-18-2003, 04:10 AM

Quote:

Originally posted by legacy777
the exhaust guy that did my muffler tried to weld the shield on to the pipe and pretty much just put a nice hole in my mid-pipe.

If the bracket holding it on is rusted, you wouldn't really be able to weld it to the pipe too well. You could try though.

u would have to use gas welder..

otherwise it would just put big hole in pipe..

Legacy777 · 10-19-2003, 05:44 PM

he did use a gas welder....but he still put a hole in the pipe.....like I said....I was not impressed with their work......

Kohburn · 10-19-2003, 11:18 PM

Quote:

Originally posted by legacy777
he did use a gas welder....but he still put a hole in the pipe.....like I said....I was not impressed with their work......

can do fine work with mig also just have to use the right settings - but hey if clamping works..
i still have to check out the situation before i decide what to do..
so its the heat shield at the cat? that you guys have been dealing with?

NiTRoN · 10-20-2003, 06:04 AM

kohburn

I'm using stock dual cats and yes.. I still have heat shield on it.. these suckers can get really hot.. much hotter than exhaust pipes... Headers - borla the one i use, nope don't have shield since isn't recommended by mfg. rest of the car i have only heat shield on underbody of the car, not on the pipes...

Mericet · 10-21-2003, 10:40 AM

I have heat shield rattles on mine too. Will removing the heat shields not damage the the steering rack rubber boots above the pipe?

NiTRoN · 10-21-2003, 12:03 PM

Quote:

Originally posted by Mericet
I have heat shield rattles on mine too. Will removing the heat shields not damage the the steering rack rubber boots above the pipe?

I've been running with my off for over 2 months now.. and no problems.. but I have borla headers.. and the rear portions of them cools much faster than stock which are from cast iron.

970subaru · 10-21-2003, 06:39 PM

weeelll... I slapped a metal saw in my skill saw and got under there and made some sparks. it was damn fun. later used the stainless fora few projects.

Mericet · 10-23-2003, 08:21 PM

Well, I tried the universal U clamps and it did not work for me. Guess I will just remove the shields.

NiTRoN · 10-23-2003, 10:15 PM

Quote:

Originally posted by Mericet
Well, I tried the universal U clamps and it did not work for me. Guess I will just remove the shields.

U clamps will not always work.. subaru uses different clamps.. which are on the inside of the shield..

Look @ #8 on the picture, kinda C with the wings clamps.

jey · 10-24-2003, 05:40 PM

I thought my heat shield was rattling too, but upon inspection with the car on a hydraulic lift it was one of the exhaust clips that had broken in 2 and was rattling up against the cat converter. Got it welded it back together, and now it's great. Just thought I'd pass that along...

Mericet · 10-26-2003, 10:35 AM

Quote:

Originally posted by NiTRoN
U clamps will not always work.. subaru uses different clamps.. which are on the inside of the shield..

Look @ #8 on the picture, kinda C with the wings clamps.

Thanks, but it was not the cat shields rattling.

WAFlowers · 10-26-2003, 11:24 AM

I found that creative use of pipe clamps solved the rattle for me ... for a while. I've got to crawl under there and tighten one of them again.

--
Bill

nitrohuffer · 10-26-2003, 05:13 PM

I went under the car and tapped around with a rubber mallet and found an off sounding one. I took it off and it's nice and quite now.

10-16-2003, 05:07 PM	#1
lag Scooby Newbie Member#: 34631 Join Date: Mar 2003 Chapter/Region: MAIC Location: Baltimore Suburbs Vehicle: 2008 e92 335i space grey	Removal of exhaust heat shields, bad or no problem? My heat shields make my Suby sound like a car less than it is. Has anyone removed thier shields from the manifold back or which ones have you removed? I know it shouldn't be but is there any adverse effect of removing the shields? * Registered users of the site do not see these ads.

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10-16-2003, 05:14 PM	#2
Cajual Scooby Specialist Member#: 12900 Join Date: Dec 2001 Location: Toronto, Ontario, Canada Vehicle: 1997 Legacy GT-Turbo Quick Silver Metallic	When I had my ej25, I had all the heat shields torched off because they were rattling so badly. Just don't park on the grass

10-16-2003, 05:38 PM	#3
KD7000 Scooby Specialist Member#: 16653 Join Date: Mar 2002 Chapter/Region: NESIC Location: Central MA Vehicle: 2012 Mazda 3 2004 Honda Pilot	I've cut or ground off at least half the heatshields, because of incessant rattling. I try not to park on tall grass. -Brian

10-16-2003, 06:59 PM	#4
monovich Scooby Specialist Member#: 8124 Join Date: Jul 2001 Location: Denver, Colorado Vehicle: 1998 Old Grey Mule Regacy Rype R	I don't have my heat shields. They rattled like crap.

10-16-2003, 08:16 PM	#5
subiekid Scooby Guru Member#: 25516 Join Date: Oct 2002 Chapter/Region: NWIC Location: Send help, stuck in internet! Vehicle: 1995 Legacy TURBO!!! EJ22T/TEC3 & '12 Civic	took them off when the did the motor transplant.

10-16-2003, 08:30 PM	#6
nitrohuffer Scooby Specialist Member#: 6982 Join Date: May 2001 Location: . Vehicle: 2001 Legover 04 forester xt	Whats the best way to get rid of them?

10-16-2003, 09:43 PM	#7
subiekid Scooby Guru Member#: 25516 Join Date: Oct 2002 Chapter/Region: NWIC Location: Send help, stuck in internet! Vehicle: 1995 Legacy TURBO!!! EJ22T/TEC3 & '12 Civic	muffler shop, they can use an air saw. the bolts will all be rusted and striped.

10-16-2003, 09:48 PM	#8
Legacy777 Scooby Guru Member#: 4800 Join Date: Mar 2001 Chapter/Region: TXIC Location: Houston, Tx Vehicle: 1990 Legacy & 97 OBS AWD 5MT EJ22T AWIC Swap	I need to take mine off....they're driving me nuts......

10-16-2003, 11:07 PM	#9
Kohburn Scooby Newbie Member#: 43493 Join Date: Sep 2003 Location: Southern, Md Vehicle: 99 Legacy GT Limit Silver	was wondering what that noise was - rarely happens so i hadn't gotten around to checking it out yet.. maybe i can tack weld the part that is rattling to something solid..

10-17-2003, 12:09 AM	#10
NiTRoN Scooby Specialist Member#: 30556 Join Date: Nov 2002 Chapter/Region: MWSOC Location: Cleveland, Ohio Vehicle: 2000 Legacy GT (BE) over 250,000 Miles	my stock header ones were rattling.. all other are fine.. wasn't really concerned because I did replace headers about month later.. now nothing rattles.. there are still all under the body and on the catalityc conv... but there i had to re-do the clamps and replace bolts..

10-17-2003, 08:59 AM	#11
Legacy777 Scooby Guru Member#: 4800 Join Date: Mar 2001 Chapter/Region: TXIC Location: Houston, Tx Vehicle: 1990 Legacy & 97 OBS AWD 5MT EJ22T AWIC Swap	the exhaust guy that did my muffler tried to weld the shield on to the pipe and pretty much just put a nice hole in my mid-pipe. If the bracket holding it on is rusted, you wouldn't really be able to weld it to the pipe too well. You could try though.

10-17-2003, 12:39 PM	#12
98GTlegacy Scooby Newbie Member#: 45436 Join Date: Oct 2003 Location: Boston Vehicle: 1998 Legacy GT Red	I was able to stop the rattling by clamping the shields down to the pipe with some universal exhaust u-clamps.

10-19-2003, 05:44 PM	#14
Legacy777 Scooby Guru Member#: 4800 Join Date: Mar 2001 Chapter/Region: TXIC Location: Houston, Tx Vehicle: 1990 Legacy & 97 OBS AWD 5MT EJ22T AWIC Swap	he did use a gas welder....but he still put a hole in the pipe.....like I said....I was not impressed with their work......

10-20-2003, 06:04 AM	#16
NiTRoN Scooby Specialist Member#: 30556 Join Date: Nov 2002 Chapter/Region: MWSOC Location: Cleveland, Ohio Vehicle: 2000 Legacy GT (BE) over 250,000 Miles	kohburn I'm using stock dual cats and yes.. I still have heat shield on it.. these suckers can get really hot.. much hotter than exhaust pipes... Headers - borla the one i use, nope don't have shield since isn't recommended by mfg. rest of the car i have only heat shield on underbody of the car, not on the pipes...

10-21-2003, 10:40 AM	#17
Mericet Scooby Newbie Member#: 45187 Join Date: Oct 2003 Location: Mt. Gilead, OH Vehicle: 99 Legacy Outback Winestone	I have heat shield rattles on mine too. Will removing the heat shields not damage the the steering rack rubber boots above the pipe?

10-21-2003, 06:39 PM	#19
970subaru Scooby Newbie Member#: 45703 Join Date: Oct 2003 Chapter/Region: NWIC Location: seattle, WA	weeelll... I slapped a metal saw in my skill saw and got under there and made some sparks. it was damn fun. later used the stainless fora few projects.

10-23-2003, 08:21 PM	#20
Mericet Scooby Newbie Member#: 45187 Join Date: Oct 2003 Location: Mt. Gilead, OH Vehicle: 99 Legacy Outback Winestone	Well, I tried the universal U clamps and it did not work for me. Guess I will just remove the shields.

10-24-2003, 05:40 PM	#22
jey Scooby Specialist Member#: 32503 Join Date: Feb 2003 Chapter/Region: TXIC Location: Johnson City, TX Vehicle: 2011 Tribeca 1995 Legacy Wagon	I thought my heat shield was rattling too, but upon inspection with the car on a hydraulic lift it was one of the exhaust clips that had broken in 2 and was rattling up against the cat converter. Got it welded it back together, and now it's great. Just thought I'd pass that along...

10-26-2003, 11:24 AM	#24
WAFlowers Scooby Specialist Member#: 23337 Join Date: Aug 2002 Location: Clearwater, FL Vehicle: 1997 Legacy GT Sedan Black	I found that creative use of pipe clamps solved the rattle for me ... for a while. I've got to crawl under there and tighten one of them again. -- Bill