I installed this piece along with MULTIPLE other GrimmSpeed pieces that were either Ported and Polished, Ceramic Coated or BOTH and can definitely tell a difference in the performance of my vehicle (and it has yet to be tuned)! All of the runners on the intake were considerably larger after the porting and polishing job that they did and in comparing to my stock core, the flow of air has a MUCH smoother path to follow. The quality of the work is Grade A and you can't be the prices when compared to the increase in performance... I noticed better spool and throttle response IMMEDIATELY!
