Outer Limits 4x4 Board

I noticed you can buy this trick sounding stuff at Supercrap


http://www.aclperformance.com.au/prod_heatshield.htm



Has anyone had any experience with it? I figure one sheet would do both my short headers and @ $60 a sheet it's a good $300 less than HPC coating.

But apart from that temps aren't my main concern. I'm not a fan of the valve train noise or whatever it is that comes with the fitment of these S-S extracors, compared to the solid cast manifolds they replaced. I'm wondering how much of the metallic tick noise this stuff could hold in if it surrounded the headers?

Mounting should be easy enough, a few slits along the top and some stainless cable ties around the primary pipes to hold it snug

ive seen this used on turboed cars where theres less than 20mm clearance between the turbo and plastic brake master resivours and the res doesnt even get warm

as for sound no idea

i ran some above my exhaust on the pathy. its very very effective. made a big difference to in cab noise

it wasnt easy to mount, but very effective!

nemesis, as a heat shield, there needs to be a gap between this and your headers. just like factory heat shields.

so what you get is the hot exhaust, a gap of air, then the heat shield, and then the air on the other side stays cool because the heat travels down in the inside of the shield.

if the shield is hard against the exhaust it too will heat up and wont be as effective.

from all reports, this stuff is super duper.

Thanks guys, I tried some. I have it pretty much folded over the headers (plenty of gap) and it doesn't even cover all the primaries (back 3) as I used one sheet cut in half. All I can say is wow, it has cut down so much of the tapping noises from these headers it's not funny!

It is great stuff.