MUSTANG GT 2015-2017 HARROP STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 815 GT No drilling through the firewall

No drilling through the firewall

For passenger side supercharger inlets setups

No drilling through the firewall required

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Increases the in-cabin rotor sound by up to 100%

MUSTANG GT 2015-2017 HARROP STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 815 GT No drilling through the firewallIncreases the in cabin rotor sound by up to 100% Drilling through the firewall required (bit provided) Sealed sound tube with special diaphragm cap installed on end of sound tube inside cabin. Connects from inlet MAF housing induction pipe through the drilled firewall location. No Stock sound tube required.