yellowstang98

im about to order a c&l 80mm mass mair system and pulleys... does the brand of pulley matter. i know the steeda retails at around 130 i think but the there is a mac system for 80???? why the difference in price, do the steedas perform better or is it jus like a steeda thing. and another thing can you use your stock belt or does one come with the pulleys? thanks a lot guys

ps-what do you think ill gain from this, a couple .10s?

Obsol3te

about a tenth in ET
only frees up like 10 hp i believe

VertStangGT86

They're round pieces of metal, the only way they could really differ is maybe long term durability. I'd just go with the cheaper ones, never heard of anyone having problems.

D1g1tal V3n0m

Go with either March Pulleys or Steeda Pulleys. Depends on who you talk to as the difference they make. Just depends. Don't get the MACs though as I have heard bad things about those. Get either of the two I listed.

Acer2428

There is actually a difference. I was over on stangnet... I know, I know, but reading the parts reviews. Apparently the Mac/March are piggy-back style for the crank pulley, using the stock harmonic balancer and then this pully behind that... supposed to look like crap and not function as well as having a single pully like Steeda.

roundman

since nobody answered your question about the belt, I will. No, you don't have to change the belt size and no they don't supply one with the pulleys. I think I got mine some years ago from Accufab, don't remember for sure though and it is different on a 98 than a 88, so listen to the other guys on this. March performance pulleys makes some real nice looking ones, check them out at www.holcombmotorsports.com the prices look good too.

D1g1tal V3n0m

Don't believe everything you read. March doesn't have the name they do for no reason.

vfast

you can buy a used set for under 50.00 asp or march are the best..asp was the 1st maker of these for the mustang back in the early 80's

Acer2428

vfast... where would someone pick up a set of used UD pullies? Looking for my 1998 GT

jdaniel

I went with steeda because it is a good name brand. Mine ran $170 and the guy that put them on said that they have had a lot of guys come back with off the wall brands of pullies that snaped the crank seal around the harmonical balancer. Thats what he told me, he owns a mustang racing shop and he is a pretty creditable person so I took his word for it.