if i had a 5.4 i would have never posted this on the CL... but in the Engine Performace as a TEASER cuz it'd be put on already. Wouldnt even have asked the wifey i'd just sleep in my S/C truck
Not much just whipple is a bigger charger. Whipple 475hp/torque510-550 at the fly Roush 445hp/500trq at the fly