New from Wilson Manifolds – the “Fatmouth” 4150 Mono-Blade Throttle Body is the newest addition to their Billet Throttle Body lineup. See more details below.

Official Release:

Wilson Manifolds the leader in induction design and technology would like to welcome the newest addition to our Billet Throttle Body lineup. Introducing the “Fatmouth” 4150 Mono-Blade Throttle Body. Its 105mm brass blade will deliver more air than any other 4150 style throttle body on the market. Rated at 2000cfm and built to last with a 1/2″ stainless steel throttle shaft. A billet linkage and stop for precision throttle control is included. Full stainless ball bearings deliver a smooth operation. Its 3.75″ tall, accepts a standard 4150 air pan. Compatible with all nitrous plate systems. Also available in a 4500 Dominator bolt pattern Part# 475105.


  • 105mm brass blade
  • Rated at 2000cfm
  • 1/2″ stainless steel throttle shaft
  • Full stainless ball bearings deliver a smooth operation