Max tow gives you
Factory tow mirrors
Trailer brake controller
Different leaf spring in back
If u have ecoboost you already have the bigger rad. Max tow gives you 11,300 tow with ecoboost. I don't have max tow, but have 9800 tow.
I'm sure I've left something out. Lots of threads in here if you search a bit.
2011 SCREW EB 4x4, XLT, 145" 3:55's, Solo Performance 4" exhaust/Mach46 muffler, Rugged liner inner fenders, 20% tint, Firestone Ride Rites, Air Lift Wireless Remote, W/T Digital Fit, W/T Mudflaps, LineX, AVS hood protector, Infinity Reference 6832cf, AMP BedStep, Bakflip VP, GenX Trims Billet lower grill, 4600 Bilsteins, AFE Stage II, Retro HIDs by Tuxedoblack11, Kicker Soundgate