MUSTANG GT500 2007-2009 SVT DS STAGE 4 open filter inlet whine mod kit 75% WHINE INCREASE SKU 150 M GT For customers who want to

For customers who want to develop and fit the Foster SC Supercharger sound tube according to their own needs

For driver’s side supercharger inlets setups

sometimes on purpose (injected humour and the like)

Connects from inlet pipe through the OEM sound tube location

as opposed to using 'Content here

MUSTANG GT500 2007-2009 SVT DS STAGE 4 open filter inlet whine mod kit 75% WHINE INCREASE SKU 150 M GT For customers who want toIncreases the in cabin rotor sound by up to 75% Foster SC Stage 4 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.