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sometimes on purpose (injected humour and the like)
Drilling through the firewall is required
Increases the in-cabin rotor sound by up to 25%
The Turbo spooling sound MOD will increase the natural turbo spool (whistle) blowoff valve (woosh) and deceleration pops and burbles on any Turbo application
Increases the in-cabin rotor sound by up to 50%
MUSTANG GT500 2010-2014 WHIPPLE STAGE 2 open filter inlet whine mod kit 75% WHINE INCREASE SKU 140 GT sometimes on purpose (injected humourIncreases 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.
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