TROYER underdrive pulleys - Power Hungry Performance Forum

		Power Hungry Performance Forum > Ford F-150, Expedition, Navigator, Blackwood, Mark-LT, SVT Lightning and H-D Editions (Disabled) > 1997 to 2003 F-150
TROYER underdrive pulleys

1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.

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#14

Fri, September 25th, 2009, 12:05 PM

97xl

Owner of the green turtle

Join Date: Sep 2009

Location: London, ON

Posts: 9

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.

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