ROUSH Replacement Air Box Seal (2015-2017 Mustang NA, 2011+ F-150, Focus)



Product Features

  • Standard 48" length
  • Trim to fit
  • For use on 2015-2017 Mustang NA, 2011+ F-150 and Focus ROUSH intakes
  • Helps isolate intake from engine-bay
  • Part# 421931

A direct service replacement seal for all ROUSH air boxes that use a bulb seal (2015-2017 Mustang NA, 2011+ F-150, Focus)

This seal helps isolate the intake from warmer engine-bay air.

Comes in standard 48" lengths, easily trimmed to fit specific applications.


Mustang: 2017, 2016, 2015
F-150: 2014, 2013, 2012, 2011
Focus: 2014, 2013

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This kit is backed with a 3-year ROUSH warranty when installed by Fastlane.

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