Has anyone purchased this pulley? http://www.extremepsi.com/x/customer/product.php?productid=16330&cat=434&page=1 If so what are you thoughts on it? Is it the samer percentage of underdrive as the AFX. At that price I'm seriously considering picking one up.

never used it or heard of it. looks like those others that are being sold on e bay. those are only 18% under drive.

Only reason I payed double for the AFX on was for the little steel insert so that it is easier to remove. Plus the 30% underdrive. I just bought an over drive pully for the alternator.

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Looks good, until you hafta cut it off to remove it. There is no way to attach a puller to it. The 3 jaw puller would pull it apart, and won't fit around the hub. There are no tapped holes for a harmonic dampener puller. I wouldn't get it, myself.
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i havent had any problems with mine. as you can see in the last pic, it has grooves for pulling it off.

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals

Did you feel a good gain from it?

i'm not sure. i did a P&P on the head and intake manifold, new valves installed, and CAI along with the UDP. then on top of that my car had been down for 3 months. i'm sure it will make a difference just because its only 1.8 lbs where as the stock pulley is 8 lbs(i think)

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals

the pulley they sell is the Top Fuel UDP from Ebay got on sitting right its a decent unit till u take it off

Bill

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

had mine off 3x no problems yet

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals