I was just curious if the ASP UD pulleies are really worth 250 bucks.
Im looking more for MPG than performance. But I could always go for more It seems to be addictive
Would it be required that I also get an optima battery?

I had an ASP crank pulley on my little s-10, which was only 90 bucks or so. I thought that was worth it since it was so cheap.

 

Not at that price and not for economy.

 

right now, im sure there are more profitable mods out there for that money, but eventually you will be running out of bolt ons and that is somehting you wll buy, im currently looking at buying one too, you will probably never see full return in your money on gas savings but its good for a few more ponies, plus its another mdod for your sig you can get hte kit from summit that has the puller, alt. pulley to let it keep running well, and the belt for 225

 

i see the UD pulley as one of the more expensive mods that do the least, IMO

i will get them eventually due to the fact that, stated above, its another mod ur gonna eventually do, and i will too!

but from reading up on here, they dont do much of a SOTP difference, but some people have claimed a slightly better tenth of a second gain, though i dont run consistent at the track EVER

so i would speculate those differences, but!! any little bit usually helps!!

jared