Jeff Sponaugle's WRX
"The Blue Line"

Current Modifications:

As the car currently rides, the engine is a hybrid of the best USDM and JDM STI parts. The block is the current production US STI 2.5L, and the heads and cams are from the MY03 JDM STI RA Spec C. These were assembled with ARP Headstuds and stock Subaru 2.5 STI headgaskets. Since these heads have the AVCS variable valve system, additional wiring was added to allow installation of a Japanese Spec RA ECU with variable valve support. In addition to the engine internals, externally a complete intake and exhaust upgrade was performed. To allow greater amounts of boost on pump gas, an Aquamist 2D computer controlled water injection system was installed, along with a 5 gallon tank in the trunk. (20% methanol)

To hold all of the power together, a MY03 JDM STI 6 Speed transmission was installed, along with the JDM STI clutch and lightweight flywheel.  Air compression is achieved thru two different turbochargers depending on the application. Around town, the car runs a Forced Performance 'Green' Turbocharger, with the 6H exhaust wheel and 8cm exhaust housing.  At the track, a custom AVO Turboworld AVO600 turbo is used. This turbo is based on the GT35R cartridge, and flows about 65lbs/min.

For open track day racing, the suspension has also been upgraded. The car rides on Tein HA coilovers with 448 lbs springs, Adjustable camber plates, Perrin Rear Sway Bar and Endlinks, and Cusco front strut tower bar. For the track session, the tires are switched out for Kumo Victoracer race rubber.

Supporting electronics, gauges, fuel, and safety systems are also present.

Engine management is based on a PDXTuning reflashed JDM ECU, as well as a PDXTuning Tuned TurboXS UTEC.

Modifications 

Engine	USDM STI 2.5 Liter Block, JDM MY02 STI RA Spec C Heads and Cams, ARP Head Studs JDM STI RA 6 Speed Transmission with LSD front/center/rear, R180 Rear Diff Forced Performance Hybrid 'GREEN' Turbocharger, T04e 50 trim based. (For Street) AVO Turboworld AVO600, GT35R based Turbocharger (For Track) MRT Front Mount Intercooler Perrin Catless Uppipe Perrin 3.25" MAF Tube and Intake Perrin Replacement Intake Manifold Hose Perrin Radiator Hoses HKS 4-1 Headers BPM TT 3 Inch Turbo Back Exhaust STI RA Lightweight Flywheel and Clutch HKS Blowoff Valve EcuTek Technology Reflash JDM Spec C ECU (AG970) TurboXS UTEC Engine Management with Launch Control Aquamist 2D Water Injection System PowerEnterprised Aluminum High Capacity Radiator Greddy High Pressure Radiator Cap
Fuel	GSS317 HP 255lph Fuel Pump Perrin Performance Fuel Rails and Steel braided Lines PE 800CC Injectors at 55psi static pressure (1000ccs flow) B&M Commandflo Fuel Regulator
Suspension and Wheels	Tein HA-440lbs Coil-overs w/adjustable camber plates. Cusco Front Upper Strut Bar Rota Gunmetal Grey 17" Sub ZeroWheels with 235/45R17 ES100s Rota Gunmetal Grey 17" Sub Zero Wheels with Victoracer 700s for the track. MRT Whiteline Anti-Lift Kit Perrin Rear Sway Bar and Rear Mounts Perrin Rear End Links H&R 5mm wheel spacers, F & R
Brakes	Wilwood 6-Pot 12.9" Front Brake System Prodrive Rear STI Brakes, Rotors, and JDM STI Rear hubs and Axels. Goodrich Stainless Steel Brake Lines
Electronics	ApexI Electronic Boost Controller (Set to 24 PSI) Defi 60mm Electronic Boost Gauge Defi 60mm Electronic EGT Gauge Defi 60mm Electronic Fuel Pressure Gauge Defi 60mm Electronic Oil Pressure Gauge Defi 60mm Electronic Oil Temperature Gauge Perrin CenterMount Gauge Cluster (2x60mm) Defi Clock Replacement Gauge Pod (3x60mm) In car ECUTek Deltadash and UTECEdit on Custom Car PC Apex-i Turbo Timer Link KnockLink TechEdge Wideband Sensor, w/Display TurboXS Tuner 'Tuna' Wideband and Knock unit, Integrated with UTEC. Battery Relocated to Trunk
Exterior	Prodrive Replacement Headlights Primitive Front Replacement Grill STI Foglight Covers
Interior	Recaro Passenger and Driver Racing Seats Ralley-3 4 Point Seat Harness, Driver and Passenger Speedware Harness Bar Bailey Camera Mount Momo RL Shift Knob Indash MP3 Player