More air flow for improved performance.
Choose from 58mm for stock or mildly built engines, or the whopping 66mm for big inch engines.
Requires throttle body specific Stealth air cleaners (available separately) for 58mm and 66mm bodies.
One-piece throttle body/ manifold design for easy installation and stock appearance.
Compatible with stock sensors, fuel rail and throttle cables.
Sealed, stainless steel throttle shaft with dual roller bearings for smooth operation and no air leaks.
Black powder coat finish matches stock.
Throttle bodies include hardened steel flanges and seals.
NOTE: Some S&S heads have additional material on the manifold surface to allow the use of a stock length manifold (405) on a 124in. engine. If you are not sure which manifold should be ordered, check fitment with the stock manifold first.