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Old 09-16-2011, 04:00 AM   #1
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Join Date: Jul 2010
Location: West Chester, PA
Posts: 211
How important is this exhaust heat shield

Starting from the exhaust tips back, I've got:

Tips

pipe

Muffler

connecting pipe

Small catalytic converter (?)

...

On top of that small catalytic converter is a "cover plate" or heat shield.

On mine is was rattling something fierce on the driver's side. I was draining the trans fluid this morning and decided to check it out - and while fiddling with it, it came completely loose so I took it off and looked around.

Directly above it and lining the chassis looks like a whole underbody heat shield protecting the rear boot from cat-converter heat. Looking around, the shield only really protected the underbody area. There's no electronics or wiring it was shielding - no rubber of any sort.

So I'm wondering: is this cover plate/heat shield even necessary? Do I need to re-attach it? Seems to me I can just call this 'fixed' and move on

Any thoughts?

Joe
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99 Boxster 5spd - 64k miles

06 Civic SI - 114k miles, D.D., unbelievably reliable and fun to beat on everyday.

08 Legacy GT 5spd - 74k miles.
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