Cobb 15-18 Subaru STI Stage 3 Power Package - Black Hose

The Stage 3 Power Package for STI Includes COBB Accessport, SF Intake System, SF Airbox, SS 3" Downpipe, Cat-Back Exhaust, SS Turbo Heatshield, AEM High Flow Fuel Pump, Top Feed 1050x Fuel Injectors, Fuel Rails, Fuel Rail Line Kit, Fuel Pressure Regulator for Fuel Rail Kit, Subaru Throttle Body Coupler, Silicone Turbo Inlet and the COBB Vehicle Badge.

ACCESSPORT

Simple ECU flashing with gauge package! The new in-cabin mountable Accessport V3 has a large, full color, higher resolution screen which allows you to monitor up to six parameters in real-time. Fully customizable from the look (multiple bezel colors), layout (set up race, street, or dyno gauge clusters), and mounting options (choose from 1,000s of standard vehicle mounts). And what's looks without brains? More processing power, memory, and storage to flash faster while saving all of your maps and logs. This is your new Accessport.

This Accessport is compatible with USDM vehicles only, please verify vehicle compatibility in Confirmed Applications.

Subaru Accessport V3 (AP3-SUB-004)

• Larger, full color, higher resolution screen
• Customizable multi-gauge display
• In-vehicle mount, with on/off switch
• Faster and easier to use with a familiar face
• Interchangeable faceplates

SS 3" CAT-BACK EXHAUST

304 stainless steel is used throughout the exhaust construction. All components are meticulously TIG welded for outstanding appearance and strength. Four custom exhaust tips fill the factory bumper cut-outs perfectly, protruding just enough to show off the COBB logos etched into the top of each polished tip. Perfect fitment is achieved with either the Subaru factory downpipe or the COBB 3" SS Downpipe. The COBB 3" SS Cat-back Exhaust for the 2015+ Subaru WRX/STI is a triumph in design and execution. Install the COBB 3" SS Cat-back Exhaust on your WRX/STI and experience performance like no other.

FEATURES:

• 2.5" & 3" 304 Stainless Steel Construction
• Quad 3.5" Double Wall Tips
• CNC Mandrel Bent Tubing
• TIG Welded
• Ready to Run with COBB OTS Maps

GESI CATTED 3" DOWNPIPE

The COBB Tuning GESi Catted 3" Downpipe begins with a CAD-designed cast bellmouth that smoothly blends air exiting the turbocharger's turbine housing. Minimizing turbulence when exhaust gasses from the wastegate join into those flowing through the turbine helps to prevent excessive back-pressure. The cast housing is capped off with a COBB logo and auxiliary O2 bung for those wanting to install a wideband sensor early in the exhaust path.

A welded bracket utilizes the factory hard mount near the transmission reducing stress on the turbocharger mounting bolts and studs.

Corrosion-resistant and mandrel bent 3" 304 Stainless Steel tubing carries exhaust gasses downstream into a COBB-exclusive GESi 300 cell high flow catalytic converter. A second O2 bung is located directly after the catalytic converter and is to be used by the OEM Rear O2 sensor.

A CAD-designed, cast 304 stainless steel, flange finishes off the tail section of the downpipe. The reinforced cast flange is less susceptible to warp during assembly and for those of you installing with the strength of Hulk. A stainless adapter flange and included MLS gasket allow direct fit with the factory exhaust or COBB Cat-Back Exhaust utilizing the OEM donut gasket. Included COBB proprietary shoulder nuts allow installation of the factory spring bolts without fuss.

• CAD-Designed Cast Turbo Outlet for Maximum Flow
• 304 Stainless Steel for Corrosion Resistance
• High Flow GESi Catalytic Converter
• Two O2 Bungs for Factory & Aftermarket Sensors
• Included Adapter Utilizes Stock Donut Gasket for Optimal Sealing & Long Life