[cb78]

I purchased the B-quiet extreme and the B-quiet L-comp. they work good together. it definately made a huge difference keeping the noise out of the cabin. before I installed it, I had to yell to have a conversation- not anymore. as far as heat insulating goes, it helped alot also but not as much as I would have liked. when I`m driving for short distances, it works really well - 1/2 hour to 45 min. but anything more than that and you could feel the heat starting to come through. it still gets real hot by the tranny tunnel and right under my feet. I guess the best way to avoid that would be to put a shield between the header collectors and the floor. overall I would give it a thumbs up. hope this helps.