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Old 03-11-2009, 03:03 PM   #1
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Exhaust heat shield - useful?

So there is, what appears to be, a heat shield over the exhaust under my car. IIRC, it goes from right in front of the axle foreword, maybe 2 feet?

Wow, worst description ever.

Anyway, does it serve any distinct purpose? Mine is no longer attached and is sitting on the exhaust, making a pretty annoying rattle. If it doesn't do anything I'm just going to take it off.

Edit -

This.

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Old 03-11-2009, 03:18 PM   #2
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keep it..... the gas tank is right there.. use a self tapping screw and it should fix it up.
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Old 03-11-2009, 03:21 PM   #3
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Well, here's my worst theory ever to go with your worst description ever.

Add this:



+ this



- this



= this




Or so I've been told.
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Old 03-12-2009, 03:07 AM   #4
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Does it really get hot enough to threaten the gas tank? Not terribly excited about the thought of just throwing a couple screws into the floor of my car, but I guess it probably wouldn't do much...

I've always wanted to look in the mirror and see a trail of fire
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Old 03-12-2009, 03:45 AM   #5
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What has allowed it to fall down? Are the screws still in the car and the heatshield has rusted at the screw holes? If so, simply unscrew the screws from the car, add a really big washer and rescrew.

That's what we did with mine.
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Old 03-12-2009, 03:47 AM   #6
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what about the heatsheild up front right after the headers? that one pretty much fell off of my car
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Old 03-12-2009, 03:49 AM   #7
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ditch it......live on the edge of wuss cliff.

By the time your n/a exhaust gets that far back, its cool enough to not threaten your tank. If it were an M3, a porch or a 183mph+ viggen, I'd say keep it.
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Old 03-12-2009, 06:17 AM   #8
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Old 03-12-2009, 06:20 AM   #9
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Simple physics/chemistry lesson.

Gaseous vapor capable of combustion+sealed volumetric container+oxygen+external heat source=boom at some given point based on conditions being right. Leave the heat shield there to do its purpose.



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Old 03-12-2009, 06:23 AM   #10
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Quote:
Originally Posted by stig View Post
I've always wanted to look in the mirror and see a trail of fire
Me too! Wait, maybe I have already. Can't remember. Anywho, definitely leave any shielding near the cat on there. I think a pal from way back with a Mazda pick-up truck ran into some problems that way....
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Old 03-12-2009, 07:42 AM   #11
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Quote:
Originally Posted by VI009DZ View Post
If it were an M3, a porch or a 183mph+ viggen, I'd say keep it.
i want to see that porch... must be pretty cool.. are the rocking chairs recaros?

lol..

sorry back to the topic..
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Old 03-12-2009, 04:00 PM   #12
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I Ripped My Heat shield up front off cause it was making noise a good 20,000-30,000 miles ago.... I drive it reasonable hard and I'm sure it gets hot, no flames...... Only thing i notice is the interior is a little louder (barely noticeable, but there) and no rattling! That Sh#t drives me crazy.

Rip it off and don't worry about it. I just couldn't get mine to stay away from the exhaust and rattle.

My .02 cents
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Old 03-13-2009, 12:32 AM   #13
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F*ck it.
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