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Review on πŸ”‹ Airaid Throttle Body Spacer 450-638 by George Bell

Revainrating 5 out of 5

Whistling Muffler F150 5.0 2019.

I installed this gasket to eliminate the whistle coming from the throttle body on my 19 5.0 F150. When reinstalling, this sound disappeared, now I only hear noise related to transmission. I am very glad that the annoying nose is gone. Please note that it fits snugly on the air intake but has adequate room as the manufacturer claims it will not fit some CAIs.

Pros
  • Maximum Fuel Efficiency
Cons
  • Compatibility