Please help
Please help
ok im trying to mod my engine and is it good to do this because this is what i have been told. Should i put a z tube and a k&n filter and a motordyne spacer in to start and what effects would this have? if you have any other sugfgestions please tell me. Thank You 

Which would be better to do first, ART Pipes or the 5/16th spacer (I have a z-tube with a drop in filter). I am thinking the ART pipes myself just for the sound difference and the performance. What's everyone else's opinion?


