Throttle Body - 1200 CFM w/IAC & TPS - Billet Aluminum

1200 CFM Billet Aluminum Throttle Body includes GM IAC and TPS sensors. Ultra high airflow design maximizes air in any engine.

PART# 74202S4

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DFI's billet aluminum throttle body is CNC machined to precise tolerances. The throttle blades are hand lapped to provide minimum air leakage while providing excellent idle control. Stainless throttle shafts provide excellent corrosion resistance for marine use. Staged progressive linkage guarantees unparalleled drivability. The throttle body comes with integral TPS and IAC sensors. Designed to fit 4150 series flange.


Emission Code3
Product TypeThruster
Part Number74202S4


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.


    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.