Tuning & Builds
JDM engine builds, dyno results, ECU tuning, power mods, and complete build showcases
Blitz: From Boost Controllers to Drift Domination
Blitz started making electronic boost controllers in 1980. They pivoted into a full tuning catalog and a dominant D1 Grand Prix drift program with drivers like Nomura Ken and Tsuchiya.
RE Amemiya: The Rotary Whisperer
Isami Amemiya has tuned nothing but rotary engines since 1974. His RX-7 FD3S demo cars remain the global benchmarks for peripherally-ported, street-driven rotary tuning.
Mugen: Hirotoshi Honda's Works Honda Tuner
Mugen was founded by Hirotoshi Honda, son of Honda's founder, in 1973. The company built Formula Junior cars, Formula 1 engines, and the 240-ps Mugen RR Civic Type R — the fastest factory Civic ever.
Tomei Powered: The Engine Internals Specialist
Tomei has been making JDM engine internals since 1969. Every serious RB26, 2JZ, or SR20 build eventually uses a Tomei oil pump, cam set, or Expreme Ti exhaust.
Powerhouse Amuse: Titanium Art and the S2000 GT1
Powerhouse Amuse's S2000 GT1 is the definitive tuned S2000 — a Tsukuba time attack legend. Their R1 titanium exhausts are the most copied exhaust design in JDM history.
Mine's Motor Sport: The GT-R Whisperers of Yokohama
Michizo Niikura's Mine's Motor Sport in Yokohama refined rather than rebuilt. Every Mine's GT-R is balanced to 1000-km rally reliability before making a single extra horsepower.
Spoon Sports: Ichishima's Honda Obsession
Tatsuru Ichishima's Spoon Sports has only ever tuned Hondas. Since 1988, the blue-valve-cover workshop has won Japanese N1 championships and built the Honda aftermarket.
JUN Auto Mechanic: The Big Power 2JZ Specialist
JUN Auto Mechanic in Tsuchiura has built 2JZ engines since 1990. Their Stroker 3.4 kit, valvetrain components, and hand-balanced rotating assemblies set the global 2JZ tuning standard.
Cusco: The Rally and Chassis Reinforcement Specialist
Cusco built their reputation on rally-grade chassis reinforcement. Their 6-point and 8-point roll cages are Japan's most respected. Their LSDs and sway bars appear on championship cars worldwide.
HKS: Japan's First and Largest Tuner, Founded 1973
Hiroyuki Hasegawa founded HKS in 1973 making aftermarket turbo kits out of his Shizuoka garage. Today it's Japan's biggest tuning house, with 800+ employees and benchmark drag and time-attack cars.
Top Secret: Smokey Nagata's Golden Supra Empire
Smokey Nagata founded Top Secret in 1991 after leaving Veilside. His Gold Supra hit 197 mph on a British motorway, and his V12 Supra remains the wildest engine swap in JDM history.
Nismo: Factory Motorsport Division Become Tuning Legend
Nismo started as Nissan's racing department in 1984. The Omori Factory became the tuning arm, producing the S-Tune/R-Tune/Z-Tune program and the legendary 400R and Z-Tune R34 GT-Rs.