The aFe 54-12779 Magnum Force booster tube is the 4-inch inlet hose for a 1999–2003 7.3 Powerstroke with an aFe GT turbo. It connects the crankcase vent adapter to the compressor inlet. It is not the stock-turbo boot.

That stock boot is 54-12619-B, which is 3 inches at the turbo. This one is 4 inches on both ends, sized for the aFe 46-60072 GT series and any turbo with a 4-inch inlet. The tube is 5-ply high-temp silicone, with two stainless clamps. No cutting or drilling. It works with aFe intakes.

It fits 1999–2003 Super Duty 7.3 trucks that already have the 4-inch turbo. It is not CARB exempt and cannot be sold for a California-registered vehicle.

Fitment

• 1999–2003 Ford 7.3L Powerstroke
• 4-inch turbo inlet only
• aFe GT series turbo 46-60072
• 4-inch in, 4-inch out
• Two stainless clamps included
• Does not fit a stock 3-inch turbo
• Not for sale in California

A stock inlet will not stretch onto this tube. If the compressor opening measures 3 inches, order 54-12619-B.