It looks like Amazon sells The Right Stuff for around 10 bucks. I saw another place listing it at around 6.50. I couldn't even find it on Summit. Ultra Copper has a greater temp range, but that may not matter for this particular application.

 

your right it is just jegs that I could find it on, now that you mention it instead of summit.

The stuff on amazon is a cartridge for a caulking gun vs the can from jegs is a pressurized deal. Not that it really matters. I would have bought it that way if doing it again.

Check out the sales pitch below on right stuff, apparently they use it in production with GM now:

This latest elastomeric rubber gasket technology is blowout resistant and out performs pre-cut gaskets. Resists ATF, coolant, oil and other shop fluids. Temp range -75°F to 450°F. Sensor safe. Specified on production lines by GM, Ford, DaimlerChrysler and Mercedes-Benz.

 

the "right stuff" is most definately good stuff but i have had exellent luck with orange nissan branded silicone. it sells for $25 a tube! i think it is also availible as 3M high temp orange rtv silicone.

 

Ya so there are about 10 on jegs, none of which says "right stuff" which one is it?

 

Just buy it at the parts store instead of paying $10 for shipping.