I am going to install my Viar stem tomorrow and will be taking pics as I go. This is a 200 lbs 100% duty cycle system. Bought it on amazon for $418 and I will have an additional $100 in couplings and custom hoses.
VIAIR 200 PSI Ultra Duty Onboard Air System
http://www.amazon.com/VIAIR-Ultra-Du.../dp/B001L7UX0S