TROYER underdrive pulleys

[Joethefordguy]

Originally Posted by 97xl

When I put the UDP from Troyer on my truck I did notice that I got slighty better mpg, and better passing power. Been on my truck 2 yrs now with no issues. But at the time it was installed I also had the AF1 CAI kit installed at the same time so I can't say which gave the better gain but I'm happy with it.

97xl,
tell me about your wheels - what are they, what size, etc. i like the look of them.

jg