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🚗💨 Unlock your engine’s hidden potential with every twist of the throttle!
The Airaid 450-638 Throttle Body Spacer features a patented Helix Bore design that spins incoming air to improve atomization, delivering significant torque gains between 800-2500 RPM and enhanced fuel efficiency. Easy to install with basic tools, this USA-made spacer offers a reliable, lifetime-backed upgrade for drivers seeking immediate performance and throttle response improvements.
| ASIN | B00AUFOC36 |
| Best Sellers Rank | #1,510,469 in Automotive ( See Top 100 in Automotive ) #156 in Automotive Replacement Fuel Throttle Body Spacers & Adapters |
| Brand | Airaid |
| Customer Reviews | 4.4 4.4 out of 5 stars (118) |
| Date First Available | December 29, 2012 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.7 ounces |
| Item model number | AIR-450-638 |
| Manufacturer | Airaid |
| Manufacturer Part Number | 450-638 |
| Model | Airaid 450-638 |
| OEM Part Number | 450-638 |
R**A
Improved performance and easy install on my 2011 f150 5.0
D**R
Fixed the whistle on my 2018 f150 5.0L, that in and of itself makes this a 5 star purchase. Won't fit along with a cold air filter, not enough room between the intake and the coolant resivoir to fit both, Atleast it didn't fit for me. Quality seemed good, came with everything you need. If your having the same issue with your 5.0L make sure you install this backwards with the intake arrow pointing out not in like the instructions say.
1**T
GREAT SPACER. EASY TO INSTALL. CAN TELL A DIFFERENCE IN LOW END TORQUE. HELPED WITH GAS MILLAGE. WENT ON 2018 5.0 F150.
A**R
Fixed the anoying whistle on my 2012 f150. Very very happy about that. Only complaint is the price. Mine also came in black, I couldn't care less about color but some might.
M**T
Works perfect on a 2020 f 150 with the 5.0 V8 to get rid of annoying whistle sound. Must be installed backwards to do so
Trustpilot
2 weeks ago
1 month ago