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Foster SC Kit couples with part of the stock sound tubes – makes installation easy
Drilling through the firewall is required
No Stock sound tube required
The Turbo spooling sound MOD will increase the natural turbo spool (whistle) blowoff valve (woosh) and deceleration pops and burbles on any Turbo application
No drilling through the firewall
MUSTANG GT 2005-2009 SALEEN DS STAGE 4 open filter inlet SOUND TUBE KIT 75% WHINE INCREASE SKU 235 UNK Foster SC Kit couples withIncreases 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.