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AIRAID 300-637

AIRAID Throttle Body Spacer
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4.8 out of 5 stars 5 Customer Reviews
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List Price: $196.99
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$157.59 USD


The AIRAID 300-637 fits some Chrysler 300, Dodge 1500 Classic, Dodge Avenger, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Wrangler, Jeep Wrangler JK, Jeep Wrangler JL, and Ram 1500 Classic models. See vehicle applications for details.
The POWERAID Throttle Body Spacer is designed to enhance off-idle torque from 800 rpm to approximately 3,000 rpm. The spacer utilizes it’s unique, patented Helix Bore design to spin the incoming air charge as it passes through the throttle body spacer. The spinning air action boosts the velocity of the incoming air and contributes to better atomization of the air/fuel mixture as the air charge enters the combustion chamber. The end result is more part-throttle torque and improved mid-range power.

[More Information on POWERAID Throttle Body Spacers]
  • Made from aircraft quality billet 6061-T6 aluminum
  • Improves low end torque and throttle response
  • Gaskets, hardware and precision brackets are included
  • Installs in less than 1 hour
  • No drilling or cutting required
  • Provides stronger mid-range power

Part 300-637 Product Specifications

Product StyleAIRAID PowerAid
CARB EO NumberD-609-10
Street Legal In All US StatesSee Vehicle Applications
TUV Approved (Europe)No
Weight1 lb (0.5 kg)
Product Box Height9.75 in (248 mm)
Product Box Length6 in (152 mm)
Product Box Width1.5 in (38 mm)
FinishAnodized Red
Gaskets IncludedNo Gasket Required
Material UsedBillet Aluminum
Mounting Hardware IncludedYes
Thickness1 in (25 mm)
Warranty12 Months - 24,000 Miles
WARNING: Cancer and reproductive

Product Reviews

March 7, 2019 - Part 300-637
Simple to install. Not sure I have noticed any performance enhancement.

Jeff Deakle
Houston, Texas
January 25, 2019 - Part 300-637
Super easy install. Noticed a much better throttle response. I also love the whistle sound you get when pressing the accelerator.

Noah Miller
May 8, 2017 - Part 300-637
Easy to install, and a noticeable change in throttle response. 2nd item from Airaid, and they haven't let me down.

Dillon Forster
Omaha, Nebraska
See all reviews    Review part 300-637