Mine does!! I have an annoying 8 mile stretch of highway to get to work and there is one 3/4 mile stretch where I can pass. I always always always get stuck behind some slow poke doing 38 in the 45. Everyday!!! but today I got to pass...ha ha ha. BLEW the old folks doors off. I'm in Florida and I think the denser cooler air now definately makes a difference.