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Connects from closed air box through the OEM sound tube location
It has survived not only five centuries
No drilling through the firewall
Sealed sound tube with special diaphragm cap installed behind pedal
sometimes by accident
MUSTANG GT 2005-2009 ROUSH DS STAGE 4 open filter inlet SOUND TUBE KIT 75% WHINE INCREASE SKU 130 Universal Kits Connects from closed air boxIncreases 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. Drilling through the firewall required. 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. For drivers side supercharger inlets setups.
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