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Accessories > Reducer Coupler
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5.0 out of 5 stars 2 Customer Reviews
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List Price: $31.69
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$25.35 USD


The AIRAID Silicone Reducer Coupler connects two air intake tubes of different diameters. Use of this component with other AIRAID couplers, tubes and related U-Build-It components allows you to design your very own custom performance air intake system.

[More Information on Couplers, Reducers and Adapters]
  • Adapts a 4 inch tube to a 3 inch tube
  • 2.5 inches in length
  • Component for making a custom air intake
  • Compatible with AIRAID UBI kits and components

Part 9108 Product Specifications

Package Contents1 Adapter
Package Quantity1
Warranty12 Months - 24,000 Miles
Product StyleAIRAID Coupler/Reducer
Overall Height2.5 in (64 mm)
Length2.5 in (64 mm)
Weight1 lb (0.5 kg)
Product Box Height7.6 in (193 mm)
Product Box Length7.4 in (188 mm)
Product Box Width7.3 in (185 mm)
WARNING: Cancer and reproductive

Product Reviews

November 21, 2016 - Part 9108
I have a 2016 Mustang V6 with a BBK 73mm throttle body. This coupler was needed to attach my AIRAID cold air intake to the BBK throttle body. It's a perfect fit.

Scott Carter
Milledgeville, Illinois
June 23, 2016 - Part 9108
You sent the part I ordered and it appears to be great quality. However, due to my incorrect measuring I was unable to use it, so I'll just have it in stock for another application.

Kenneth Walker
Bixby, Oklahoma
   Review part 9108