AIRAID 1987-1996 Ford I6 300ci Throttle Body Spacer (AIR400-593)
AIRAID AIR400-593 1987-1996 Ford I6 300ci Throttle Body Spacer is designed to improve off-idle torque and enhance mid-range power in Ford 300ci inline-six engines. The spacer features a patented Helix Bore design that spins the incoming air charge as it passes through, boosting velocity and improving atomization of the air/fuel mixture. This results in stronger part-throttle torque, improved throttle response, and better mid-range power. Constructed from aircraft-quality billet 6061-T6 aluminum, the AIR400-593 provides durability and precise fitment, ensuring consistent performance over time. Installation is simple, requiring less than one hour with included gaskets, hardware, and precision brackets, with no drilling or cutting required. Finished in black, this spacer delivers both style and long-lasting performance.
Patented Helix Bore design for spinning incoming air and improved atomization.
Enhances off-idle torque from 800 rpm to 3,000 rpm.
Aircraft-quality billet 6061-T6 aluminum construction.
Includes gaskets, mounting hardware, and precision brackets.
Installs in under 1 hour with no drilling or cutting required.
Improves mid-range power and throttle response.
Black finish for durability and style.
Boosts throttle response and part-throttle torque.
Provides stronger mid-range power for Ford 300ci inline-six engines.
Durable, lightweight construction for long-lasting performance.
Easy installation with all components included.
Technical Specifications:
Model: AIR400-593
Product Style: AIRAID PowerAid
Material: Billet 6061-T6 aluminum
Thickness: 1 in (25 mm)
Weight: 2.1 lb (1 kg)
Gaskets Included: Yes
Mounting Hardware Included: Yes
CARB EO Number: D-609
Street Legal in US States: Not legal in CA on pollution-controlled vehicles (some models may be CA legal; check vehicle application)
Vehicle Applications:
1987–1996 Ford F150 4.9L L6 Gas – Street Legal in all US States
1987–1996 Ford Bronco 4.9L L6 Gas – Not street legal in CA
1987–1996 Ford E150/E350 Econoline 4.9L L6 Gas – Not street legal in CA
All models listed above – Check CARB EO number D-609 for compliance
Product identification
- Brand: AIRAID
- Model / MPN: AIR400-593
