I agree with this. I went with a 65mm pulley and tune first. It was like a new car. Of couse since I didn't do the CAI first, I can't know what that would've been like if a CAI had been done first. Definitely get a tune whatever you do.
Originally Posted by
velociabstract
This is a tough one IMO. I did NW intake first. 64.7 mm Code3 pulley second. I expected more than I got. The mods helped but it was a dyno tune that made the difference. Put a tune high on the list. I'm in the camp where you need a tune along with any other engine mod.
Les