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Old 04-28-2013, 04:12 AM   #1
lavid2002
Scooby Specialist
 
Member#: 226864
Join Date: Oct 2009
Location: southern NJ
Vehicle:
2005 PSM WRX
18.5lb. 93 oct, DP, UP

Default Exhaust wrap under heat shields? Overkill?

Hey everyone.

Going with OEM headers, STi up pipe, and a catted downpipe.

Here's the plan
-Cut the OEM heat shields off the STi up pipe + wrap it
-Wrap the OEM manifold and put the heat shields back on
-Turbo blanket
-Wrap most of the down pipe

Am I going crazy with this heat insulation? Reasonable?
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Old 04-28-2013, 04:42 AM   #2
p951951951t
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Member#: 276541
Join Date: Mar 2011
Chapter/Region: South East
Location: North Georgia
Vehicle:
1972 Alfa Romeo GTV
Alfa Rosso

Default

Not at all. In fact wrap really does little in the way of thermal insulation, but it is better than nothing.

If you want the best thermal insulation you need to cut off the heat shields and wrap the pipes in 3/4 thick high temp insulation then put the shields back on to protect from fluids.

I got my shields zinc plated to freshen them up and protect from corrosion while I was at it.



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Old 04-28-2013, 05:44 AM   #3
Sn0wKing
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Member#: 341560
Join Date: Dec 2012
Chapter/Region: International
Location: London, UK
Vehicle:
2011 STi
WRB

Default

You know what's overkill?! Making two of the exact same threads, asking the exact same question less than 20 minutes apart.

http://forums.nasioc.com/forums/show....php?t=2498881
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