609 WHP Toyota Supra 
Engine Tech | Dumb Ways to Die…for your Engine 
558 WHP Club DSPORT Built Subaru BRZ 
Engine Tech | Maximizing 10th Gen Civic Si Performance Injen Technology’s Catback Exhaust System | 2017 Subaru WRX STI Exhaust Shootout
Injen Technology Catback Exhaust System P/N – SES1206TT Injen Technology’s Catback Exhaust system for the WRX and STI features 76.2mm-diameterRead More
GrimmSpeed Catback Exhaust System Un-Resonated | 2017 Subaru WRX STI Exhaust Shootout
GrimmSpeed Catback Exhaust System – Un-Resonated GrimmSpeed’s Catback Exhaust System – Un-Resonated for the WRX and STI consists of TIG-welded,Read More
Extreme Turbo System Cat Back Exhaust | 2017 Subaru WRX STI Exhaust Shootout
Extreme Turbo Systems Cat Back Exhaust System (Burnt Tips) P/N – 2015-WRX-CB The Cat Back Exhaust System from Extreme TurboRead More
Scion FR-S/BRZ Intake Test: Pt 1 | Testing with the Factory Programed ECU
I hate this! What the Hell? How is it doing that? This trio of phrases was also heard on ourRead More
Ecutek FR-S | Reprogramming the Power-Limiting Factory ECU
Purchasing an ECU refresh solution is not an option for FR-S/BRZ owners. Instead, it should be considered a requirement. InRead More
Scion FR-S/BRZ Intake Test: Pt 2 | Testing with EcuTek
What will over 300 runs for the purpose of an intake showcase teach you? At times, it didn’t seem likeRead More
Headlight Restoration Product Showcase
In order to fairly evaluate these headlight restoration products, we’ve sourced headlights from our Local Pick Your Part salvage yardRead More
Camshaft Showcase: 4G63 EVO Build
Mitsubishi’s 4G63 engine is arguably one of the best four-cylinder engines ever built. While the early variants set records poweringRead More
Final Results
THE NUMBERS GAME When we arrange all of the tested camshafts by the actual measured intake duration at 1mm, anRead More
TOMEI POWERED 290
MANUFACTURER: TOMEI POWERED ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1454290115 CAMSHAFT PN# (EXHAUST):1455290115 SPEC CARD# : GSC-6008S3 INTAKE EXHAUST CAM TIMINGRead More
Kelford Cams 280
MANUFACTURER: Kelford Cams ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: 8-TX280 SPEC CARD#: 133933 INTAKE EXHAUST CAM TIMING EVENTS Centerline 107° 113° ValveRead More
TOMEI POWERED 280
MANUFACTURER: TOMEI POWERED ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1453280115 CAMSHAFT PN# (EXHAUST):1455280115 SPEC CARD# : GSC-6008S3 INTAKE EXHAUST CAM TIMINGRead More