Are the aftermarket ones much different in performance?

Wondering which one I should get..

 

they are a huge difference because they totally change how your supercharger is performing.

I usually dont do this....but i really think that maybe you should do a search. There is SO much information regarding pullies on this site that you can use to decide.

 

thanks for the response! i was trying to look for an easy way out lol

 

Do a pully and in intake at the same time. For ~$350 +instilation you can have almost 20 extra whp.

 

I kinda like the m7 design. I havn't been brave enough to do the pulley yet, but when I do. Thats the one I'm going for :D.

 

I got a deal on my Alta, so that made up my mind...

 

Just had a Helix 15% pulley put in today and man am I happy! Definately recommended.

 

alta here, would recommend colder plugs at the same time, and of course a CAI like recommended above, those are good enough to get you sucked in

 

I've got a Webb pulley, with a bunch of other stuff today. I'd say his, plus plugs...

 

What pully you get dosent matter. They are all the same performance gain due to their size. The deciding factor should be due to brand loyalty and price at which you can get a product...

 

Get either a Alta 15% or a Webb 15% and either an Alta CAI or the new Webb intake.

 

Which pulley - most brands discussed here at NAM are all quality that being
the case - buy from your local vendor if you have one. Often he will facilitate install. If there were to be "issues" (i.e. pulley itself or install) chances are he will rectify faster.

Others here are suggesting some other goodies to go with your pulley. Modders can't help themselves and being one here is my suggestion to you:

LEVEL 1a (cheapest ponies can buy!) pulley, Denso IK22 cold plugs , replacement filter like ITG, 1-ball exhaust and rear swaybar.