Have you read the entire thread? both will apply for you since Mrev2 work for both Revup and non-Revup. Read every advice in here and see what fit you.

 

So I have read through many of the posts (yep used the ole search that everyone seems to point out) and have questions about the intake. For the 03 (non rev) engine should I go with the Mrev2, 1/2 spacer, 5/16 spacer or a combination? What would be the difference between the options?

 

1st things 1st, pin stripes, hub cap spinners (for now), black fade to chrome tints, slotted front fenders (its ok u dont have to paint them now, just leave them with the primer.) and with the few dollars u have left over get those light up valve stem caps. these are the 1st things to do to ur car to make it cool and classy, plus i dynoed an extra 24 RWHP with these

 

You forgot the super duper park bench spoiler

 

NOOOOOO!!!! performance first, then ricey mods. 1500 is enough for exhaust, a CAI and a plenum spacer.