Ive never heard of the brand of pulley Caldwell talked about, but I've never had ANY problems with Underdrive on any of my cars.
All I've done to my 03 mounty is E-fan, K&N cold air intake, and chop the third cat and put in a Magnaflow exhaust. I pull 9.974 in the 1/8 mile and I'm faster than my buddies turbocharged jeep Cherokee that was dyno'd at 280hp (its stock was probably around 190). So evidently my mods have helped a bit.
I was looking for a nice set of underdrive pullies but didnt think the cost was worth it, but I'll go with steeda. 4.10 gears are my next mod followed by a nice tune. =)
All I've done to my 03 mounty is E-fan, K&N cold air intake, and chop the third cat and put in a Magnaflow exhaust. I pull 9.974 in the 1/8 mile and I'm faster than my buddies turbocharged jeep Cherokee that was dyno'd at 280hp (its stock was probably around 190). So evidently my mods have helped a bit.
I was looking for a nice set of underdrive pullies but didnt think the cost was worth it, but I'll go with steeda. 4.10 gears are my next mod followed by a nice tune. =)
Hey Xeno--did you go with a Flex-a-lite Efan?
It's a 4wd and I had the UDP installed just prior to having the truck tuned. So it is hard for me to say about the difference.
207 rwhp is just without the tune therefore it is not truly stock.
WOW - 18 rwhp just from the tune. That's remarkable.