Found SW1 setting engine was happier but not much change in power. SW2 default setting and this STOCK truck with 379,000 km on it HAULS A$$. Will have Analog EGT gauge install this week before i pull my 15K toyhauler. Very happy new smarty jr man. (4TH gear WOT ONCE was enough for me to start giggling like a school girl) NO smoke, I will leave it on SW2 Towing and be done.

 

I left my Jr. on the SW1 setting... It gave exactly what I wanted, lower EGT, better throttle response and midrange power, and a slight F.E. increase.

 

Your 06 puts out stock 325/610 and on SW1 will approximate my 04 305/555 SW2. It will be interesting to see how the clutch holds out on my 6 spd manual.