Kinugawa 3" Ball Bearing TF06-18K Turbo — Subaru WRX & STI 500+whp Upgrade
The Kinugawa TF06-18K combines a billet 18K (18KX) compressor wheel with Kinugawa's STS Advanced dual ceramic ball bearing system for a high-efficiency 500+whp build. The 7+7 point-milled (free surface) compressor wheel flows 54 lb/min — significantly more than ruled-surface alternatives — delivering both quick response and strong top-end power. Note: This is not a bolt-on fitment. Your intake pipe or manifold must be modified to accept the 3" compressor inlet. Available with Anti-Surge or Non Anti-Surge compressor housing.
Vehicle Fitment
- 2002–2007 Subaru WRX (EJ205)
- 2004–2016 Subaru WRX STI (EJ257)
- 2004–2007 Subaru Forester XT
- Replaces TD04L, IHI VF30, VF35 — modification required for 3" inlet
Turbocharger Specifications
CHRA: TF06-18K
Power capability: 500+whp
Compressor wheel: 55.1/75mm — Billet 7+7 Point Milling (Third-Order Free Surface), 54 lb/min max flow
Turbine wheel: 61.5/54mm — 9 blades STS (Superior Turbine Strike)
Compressor housing: AR.60, 3" inlet, 2" outlet — Anti-Surge or Non Anti-Surge
Turbine housing options: 8cm/AR.57 or 10cm/AR.73
Turbine inlet: Subaru single scroll
Turbine outlet: Subaru 5-bolt
Wastegate: Internal gated (IWG)
Turbine material: High-Ni alloy for thermal resistance
Bearing type: STS Advanced Dual Ceramic Ball Bearing
Cooling: Oil and water cooling
Actuator pressure (default): 1.0 bar / 14.7 psi
Custom actuator pressures available: 0.3, 0.5, 0.8, 1.2, 1.5, 1.7, or 2.0 bar — add a note at checkout or contact us.
Point Milling vs. Flank Milling — Why It Matters
The 18K compressor wheel uses Point Milling (Free Surface) — a slower, more precise process that produces complex 3D blade geometry impossible with standard flank milling. The result is higher air pressure, better flow efficiency, and more power per pound of boost.
STS Advanced Dual Ceramic Ball Bearing
What's in the Box
- 1× TF06-18K Turbocharger
- 1× Oil supply set
- 1× Water supply and return pipe set
- 1× Return oil pipeline
- 1× Turbine inlet and outlet gasket
- 5× Stud and nut set
- 1× Balance Report with Anti-Counterfeit Tag
Condition & Quality
- Brand new
- Full balance certified by SCHENK MBRS 110 (Germany)
Manufacturer
Kinugawa Turbo Systems
Warranty
Kinugawa Turbo Systems offers a KINUGAWA TROUBLE-FREE WARRANTY for 1 year from the purchase date to the original purchaser. Return for a free overhaul, recondition, or replacement depending on availability. Kinugawa covers you no matter the issue.
Note: Maximum power stated represents potential flywheel power based on compressor choke flow. Performance results depend on your vehicle's modifications and tuning/calibration.