How to Install a Roush Phase 1 to Phase 3 Supercharger Upgrade Kit on your 2011-2014 GT Mustang

Use a 15mm wrench to take the tension off of tensioner on passenger’s side of motor, which is the belt for water pump, alternator, and is also on the crank pulley. 

Remove the belt. 

Use an 11/16-inch wrench to remove the tension from the Supercharger Serpentine Belt. 

Slip Belt Off of supercharger. 

Remove the bolt with the spacer on it so that you can slip the old belt out. 

(You may need to take other 2 bolts loose on Idler bracket to allow movement) 

Slide the new (2085 6 Rib) Belt On. 

Remove belt by fishing it out of other pulleys. 

Slip Old Belt out, and Remove the 6 - 8mm bolts on the front of existing Supercharger Pulley. 

Use a Pulley Puller tool, to remove stock pulley. 

Place new Supercharger Pulley on Engine, and tighten the 6 bolts to 10 foot Pounds. 

(Recommend using Lock Tight on bolts). 

Reinstall supercharger belt, and tighten the . in bolts to the idler bracket. 

Reinstall Drive belt for Alternator and Water pump and crank shaft as well. 

Loosen the 8mm bolt on the clamp, on top of throttle body side of intake, on throttle body. 

Loosen 8mm bolt clamp on bottom air box side. (Red Highlight) And remove the Mass Air Flow Sensor with a T20 TORX screwdriver. (Green Highlight) set aside for new intake. 

Remove the PCV Tube from passenger’s side of intake tube, and the one small vacuum line from driver’s side. 

Remove the 10mm Bolt on Drivers side between fender and air box. 

Pull air box up to release from grommet from bottom of air box. 

Remove air Intake system from car. 

Assemble new air box, air cone, through metal box, and clamp it on the angled pipe, and screw it to the metal box, with a 8mm socket. 

Install new air box and clamp it on throttle body. With the 8mm Hose Clamp. 

Under the Roush letter on air box, there a slot for a bolt to go through on radiator, and there is a nut supplied with the bit, also a 8mm. 

Remove the rubber grommets from old airbus. 

Press the new air box into grommets on bottom, and replace the bolt on fender side of air box, with a 10mm socket. 

Reconnect the Mass Air Flow and the vacuum line on top end of intake, and oil return line as well. 

Remove rear trunk cargo cover. 

Remove spare tire 

Remove the rear trim panel. 

Remove rear dome light. 

Remove back seats, by pulling clips underneath the outside of the seat closest to the windows. 

Remove drivers side sill panel, by pulling up on the outer edge, but be sure to disconnect the illumination wiring. 

Remove the Drivers side kicker panel by using a trim too on the small clip holding it in place 

Pull carpet up so it exposes factory wiring. 

Remove the boost gauge from the passenger’s side of the intake, and unthread the fitting, with a 14mm wrench. 

Set boost line aside, where it won’t get crushed. 

Access the cargo space, remove factory wiring and run new wiring along old wiring, placing it under the three clips and reinstalling factory harness over it. 

Locate the Fuel Pump Module, at rear of spear tire hole on drivers side, unplug the harness and plug the splitter wire in and plug harness into splitter. 

Plug Roush Voltage Regulator into existing plug. 

With wiring up under the sill of the trunk plug the Roush Instrument box in, and screw it in with the 4 self tapping screw supplied above the rear fender, located the hole in the sheet metal and place it over the hole, use a ¼ socket to secure the box. 

Route the wiring up through the back seat and down the drivers side door sill, under the carpet, and along floor of the back side of the dash and pull the boost line through though. 

Connect the pressure switch, supplied in the upgrade, to the T filling, and reconnect the existing fitting to the T also. Us Teflon tape on all fitting threads. 

Thread the switch into intake hole we removed boost line from earlier. 

Tighten with a 15/16 inch wrench. 

Run wiring across the firewall to the switch and plug in harness. 

Secure new wiring to existing wiring. 

Replace the F13 Fuse in the fuse box a 20 amp fuse with the new 30 amp fuse supplied. 

Roush PCM Flash Voucher Card Included with purchase of kit is used to obtain the specific calibration needed for the Phase 3 Kit. Its required that you send Roush your PCM, or you have the tune installed by a shop with an approved pass through device. 

Contact them at 800-597-6874 or www.roushperformance.com 

Location of PCM, Passengers side front of engine Compartment, next to Fuse box. 

Installation Guide Created by AmericanMuscle Customer Keifer Mitchell on 9.23.2015