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Why do we use it
Connects from inlet induction pipe through the drilled firewall location
No Stock sound tube required
sometimes on purpose (injected humour and the like)
Increases the in-cabin rotor sound by up to 100%
MUSTANG GT 2010-2014 WHIPPLE STAGE 2 OPEN FILTER INLET SOUND TUBE KIT 75% WHINE INCREASE SKU 100 other Why do we use itIncreases 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.