Custom Performance Tuning was born from a merger of ideas and resources between SD Racing and Custom Performance Engineering. Both companies pooled their decades of performance knowledge together to create Custom Performance Tuning
Remote Tuning (eTune) by CPT
Cobb
The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your EcoBoost, MazdaSpeed or Subaru engine. Unleash the potential hidden within your vehicle by replacing conservative factory settings with more aggressive calibrations.
Subaru Accessports
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Subaru COBB AccessPort V3 for WRX/STI ('15-'21) & Forester ('14-'18)
Regular price $695.00 USDRegular priceUnit price per$770.00 USDSale price $695.00 USDSale -
Sold outSubaru WRX '02-'05 COBB AccessPort
Regular price $735.00 USDRegular priceUnit price per$770.00 USDSale price $735.00 USDSold out -
Subaru WRX/STI '08-'14 COBB AccessPort
Regular price $735.00 USDRegular priceUnit price per$770.00 USDSale price $735.00 USDSold out -
Subaru WRX/STI 2.5L Turbo '04-'07 COBB AccessPort
Regular price $735.00 USDRegular priceUnit price per
HP Tuners
HP Tuners is the premier tuning and diagnostics solution for vehicle aftermarket performance with over 20 years of expertise.
Diablosport
DiabloSport offers a variety of tuning products designed to deliver more power, improved drivability, better towing, and improved efficiency. We’ve built a focus for specific models to use DiabloSport devices because they each feature wide application coverage including the popular domestic trucks and muscle cars. Whether your goal is towing your boat to the lake, tackling the toughest off-road trails, or beating your best time down the track, DiabloSport has a tuning solution for you