- Vortech SFMU
- Unorthodox Racing Pulley
- Thermal Data Logging - Images and Excel Spreadsheet
- Sparkco 9mm Plug Wires
- Spark Plug Changing - Instructions
- Intake Silencer Removal
- Subaru Oil Cooler
- OilChange Guide
- OEM Muffler Dimensions
- Replacing the O2 Sensor
- Series To Parallel Fuel Delivery Modification
- GanzFlow Air Intake
- Forced Air Tech Turbo
- Making That Hood Scoop Functional
- Custom Intake Modification for MY99 - Description and Images
- Blown MAF
- ApexI N1 Exhaust
- Apex Exhaust
- Airfilter Information for MAF cars
- Amsoil Filter
- Slow Autometer Boost Gauge Fix
- Random Tecnology Hi Flow Catalytic Converter
- EGT Probe Placement
- Strömung Muffler
- MAF replacement ( Air Flow Meter) 99MY
- Radiator Cover from Primitive Enterprises
- Fuel Pump Installation
- Magnecore plug wire install on 2.5 RS
- ProECM Powerchip Model PC-3
- Custom MSD Spark Plug Wire Install Instructions
- Intercooler Screen for GC8
- Duffguard Radiator Shroud
- Fuel Filter Change
- MOD: How To wire Fuel Pump Controller On RS with WRX Conversion
- Impreza Turbo GC8 (97-98) Air-Intake/Cleaner Diagram
- Impreza GC8 WRX/STi intake mod