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MUSTANG GT500 2010-2014 SVT STAGE 2 open filter inlet SOUND TUBE KIT 75% WHINE INCREASE SKU 135



Smooth interior walled high heat resistant tubing

Rubber grommets for a tight seal and clean install

High heat resistant braided cut sleeve covers

Hose ends finished with marine grade thick walled adhesive heat shrink

All kits complete with Bi-metal drilling bits and detailed install guide










256 in stock


  • Increases the in-cabin rotor sound by up to 75%
  • Foster SC Stage 2 Kit works on both closed air box and open filter or aftermarket CAI systems.
  • No drilling through the firewall required, but opening the existing hole to  1/38” increases whine.
  • Connects from inlet pipe through the OEM sound tube location.
  • Sealed sound tube with special diaphragm cap installed on end of sound tube inside cabin.
  • No Stock sound tube required.





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