Quick question from a newb; I notice some of you do a lower pulley mod, some do an upper pulley mod and some do both. I do understand that these modifications increase S/C boost but could somebody explain which I should do when I get my V?
I have searched on this specific question but there seems to be two camps here specific to pulley mods (upper vs. lower).
Perhaps when in doubt, do both!
Thanks in advance for the guidance/advice.