so i recently started to experience horsepower loss (alot)... and i thought my piston rings were bad ... i was working on my car earlier today ,took off the intake manifold and notice that my thermal gasket had melted a bit and the egr port on the gasket was not even wih the port on the lower runners .. therfore causing a gasket leak ... wow those things are garbage do not use!! I need to check my t.b because i have one on there aswell..

YEss i experiences the same idle problem .. thats what happens when you over tighten the intake manifold it squeezes the gasket out of place .. ( besides they dont even give alot
of performance.. i just took mine off i rather not buy anymore of those gaskets

I just put one on my 07 tl and it idled fine. I guess we’ll see after a while if I have any issues. The main idea behind these is not to gain power but to keep the intake cool by not transferring heat. My friend has one on his 06 accord and before you could hardly touch the intake manifold without being burned, now after a 30 minute drive and plenty of hard pulls it’s fairly cool to the touch.