Must just be the drivers, cause I can take most stock SR20's with a FMIC and upped boost with my RB20 with the SMIC and stock boost. Same with alot of my RB20 customers they can take entry level SR's(FMIC, upped boost, and stickers), now Brians SR is a different beast, I wouldn't even waste my gas trying. But I have beaten RB20's and SR20's with my 6 psi KA-T setup. It must be the drivers. RB20, SR20 they're both 2 liters, who cares?
E









