What's the standard definition of Stage 1, Stage 2 and Stage 3?
#7
Isn't it a little different for the A4's?
in the 2 and 2+ area? Since the cat bolts to the turbo, and exhaust goes from there, wouldn't 2+ be the same as 2? not being picky, but I joke with my dad about having a 2+ b/c he has an airfilter with with his chip/exhaust... make him feel special.