Bolt-On Basics: RSX Type-S
im about to change my plugs for watever reason and i wanna go with NGK Iridiums
i have cai, rbc, rh, exhaust, and K-Pro
obviously i have to go with resistor plugs, but what cold rating do you guys recommend for my set up?:thumbsup:
i've heard and read mixed things about going 2 steps colder or...