F-150 2010 & UP E-FORCE STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 185 UNK For driver’s side supercharger inlets

For driver’s side supercharger inlets setups

Various versions have evolved over the years

Connects from inlet pipe pipe to the OEM sound tube location

but opening the existing hole to 1/38” increases whine

but also the leap into electronic typesetting

F-150 2010 & UP E-FORCE STAGE 4 Inlet path SOUND TUBE KIT 100% WHINE INCREASE SKU 185 UNK For driver’s side supercharger inletsIncreases 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.