I was looking through the Summit Sport Compact mag., and came across some AEM...True Power Pulleys (I believe that's what they were called...don't have it in front of me right now, or else I'd know for sure...). They were a sliver-ish color and said that they came with belts... Now are these for the PS/AC pulleys...or is it another version of an underdrive pulley?...they do look nice, but I'd just like to know what they are used for...thanx!

last time i checked AEM only made pulleys for the 4G63

Ya, AEM also makes them for the 3g. But they are NEVER going to make underdrive pulleys like the AFX or Unorthodox. I have asked one of their head engineers multiple times when I went down there, and they are convinced that it is not safe to do on our cars after talking to Mitsubishi.

Here is what it says on their site (a lot will disagree that this does not apply to our cars):
*IMPORTANT:
Vehicle manufacturers have thoroughly investigated the use of torsional vibration dampeners and conclude that their use significantly reduces NVH (noise, vibration and harshness). Furthermore, manufacturer and independent research shows that torsional vibration dampeners are critical to engine life where long-term use is intended. Removing the torsional vibration dampener from an engine can be highly detrimental to its long-term operation!

Also, they only make it for these applications:
Mitsubishi
Eclipse 89-94 Turbo 23-7301
Eclipse 2000-01 V6 23-7300
Eclipse 2000-01 (RS, GS) 4CYL. 23-7303

So none for our cars.

Yeah ive seen that warning too, it almost made me not get an UDP. But after seeing how many of you's have em I went ahead and did it.

o.k., so AEM doesn't make UDP's for a 2G...so what is the Tru-Power Pulley that I was looking at for?

The Tru-Power pulleys are not made for our cars. I know some of their pulley are larger than stock so it makes less rotations. But none are for our cars as far as I know since it's not listed on their site, and no one on here has them.

"use of torsional vibration dampeners and conclude that their use significantly reduce"

Crap I tell you. The stock pulley is SOLID Iron with some rubber glued to it... BFD.

The AFX underdrive pulley is worth every penny. Amazing revving difference. PowerSteering Belt stops flying off the pulley at 8,000rpm action too :-)

Mopar Performance actually *recommends* the AFX for the 420A!

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Car... Still waiting on it... Now, in Customs Department!!

4WD? Not unless all FOUR wheels put the power down!
HINT: Put your average GSX on a car lift and step on the gas... ;-)