F-150 2010 & UP E-FORCE STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 185 UNK Increases the in-cabin rotor sound

Increases the in-cabin rotor sound by up to 75%

For driver’s side supercharger inlets setups

sometimes on purpose (injected humour and the like)

Drilling through the firewall is required

Connects from inlet MAF housing induction pipe through the drilled firewall location

F-150 2010 & UP E-FORCE STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 185 UNK Increases the in-cabin rotor soundIncreases the in cabin rotor sound by up to 100% Drilling through the firewall required (bit provided) Sealed sound tube with special diaphragm cap installed on end of sound tube inside cabin. Connects from inlet MAF housing induction pipe through the drilled firewall location. No Stock sound tube required.