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Review on πŸš€ Airaid PowerAid Throttle Body Spacer 400-531 for Improved Engine Performance and Efficiency by Fred Vazquez

Revainrating 5 out of 5

Noticeable improvement in throttle response

Very easy installation. Everything you need is included. I did notice an improvement in throttle response, but nothing significant. Sometimes a very faint whistle, but I have to turn off the AC, turn off the radio, and roll down the window to hear it. Installed on a 2010 Ford F-150 5.4 with K&N cold air intake.

Pros
  • Nice packaging
Cons
  • No power