P2 and it really stops the TT w/o any effort. I've had to stop it because of sudden light change and it did it's job. Wouldn't tow w/o it.
2004 F150 SuperCrew Lariat, 5.4L, Max Towing, CIPA Towing Mirrows, Timbren
2006 Jay Flight, 31 BHDS
Reese Strait-Line Dual Cam