hello everyone!
Here's the deal, I have a 2008 F150 5.4 with a flowmaster cat back, and a K&N intake system. The truck is also lifted 6 in on 35s. I want to add on a whipple supercharger. I don't know much about superchargers, so bare with me. I'm looking into the Whipple W140AX (2.3L) intercooler kit. My question is.. if I add the whipple, do I need to change anything else on the truck such as gears, camshaft, driveshaft, exhaust, tuning, ect.
Please shed some insight before I drop $$$$$ on the truck

 

If you don't change the tune at a minimum, you'll be having problems. Simply forcing more air into the engine without adding more fuel will simply cause a lethal lean condition and grenade the engine (if it even runs). Secondly, I'd want an exhaust that can take advantage of the increased air flow into the engine, so you might as well get long-tube headers at that point. The supercharger should have it's own intake plumbing, so that's a moot point. The driveshaft should be fine unless you are shredding u-joints. Gears are more closely related to tire size, so I'd want 4.10's at a minimum, but 4.56's ideally to take the strain off of the transmission from those heavy 35's.