TR-TM1004 Sigma Turbo for Mitsubishi Evolution X (4B11T) | Bolt-On Turbo Upgrade

Overview The Tomioka Racing TR-TM1004 Sigma Turbo is a bolt-on turbo upgrade engineered for the Mitsubishi Lancer Evolution X (4B11T). It’s built for enthusiasts who want a stronger mid-to-top-end powerband, higher airflow capacity, and boost stability—without the complexity of custom fabrication. Why Upgrade to the Sigma Turbo (TR-TM1004) 100% bolt-on fitment for the Evo X turbo location and factory-style install 3” inlet supports increased airflow and power headroom Ported & polished turbine housing improves exhaust flow efficiency 1.5 bar / 21 psi actuator for strong boost control on performance tunes Mid-to-high powerband focus for street pulls and track use Power Notes The “up to ~550HP” figure is power potential, not a guarantee. Final output depends heavily on supporting mods (fueling, intercooler, intake, exhaust), fuel quality (pump vs ethanol blends), tuning strategy, and overall engine condition. A proper tune is required. Turbo Specifications Bearing Type: Journal Compressor Wheel: 61.4mm inducer / 82mm exducer Turbine Wheel: 67.1mm inducer / 58.8mm exducer Actuator: 1.5 bar / 21 psi Turbine Housing: 12cm² Power Potential: Up to ~550HP (with supporting mods & tuning) Fitment Vehicle: Mitsubishi Lancer Evolution X Engine: 4B11T If you’re unsure about compatibility with your specific year/trim, message us before ordering. What’s Included Turbocharger assembly Wastegate actuator Oil pipe Water pipe Gasket(s) (varies by batch/listing) Recommended Supporting Mods Professional ECU tune (required) High-flow intake / turbo inlet solution compatible with 3” inlet Upgraded intercooler + charge piping (to control IATs) Fuel system upgrades if targeting higher boost / higher power Free-flow downpipe & exhaust Use Case Ideal for Evo X owners building a responsive street car with serious top-end power capability, or a track-focused setup needing reliable airflow and boost control. Specs Table Part Number: TR-TM1004 Application: Mitsubishi Lancer Evolution X (4B11T) Bearing: Journal Compressor Wheel: 61.4mm / 82mm Turbine Wheel: 67.1mm / 58.8mm Actuator: 1.5 bar / 21 psi Turbine Housing: 12cm² Power Potential: Up to ~550HP (supporting mods + tune required) FAQs Q: Is this turbo truly bolt-on for Evo X? A: Yes—TR-TM1004 is designed as a bolt-on upgrade in the factory turbo location. You still need proper install steps, leak checks, and tuning. Q: Do I need a tune? A: 100% yes. Do not install and drive hard without tuning. Q: What does “up to ~550HP” mean? A: That’s the turbo’s potential with the right supporting mods (fueling, intercooler, intake/exhaust) and an aggressive, safe tune. Your results will vary. Q: What supporting mods do you recommend first? A: Tune + intercooler + intake/inlet + fueling (if you’re pushing power) + downpipe/exhaust. Q: Journal bearing vs ball bearing—should I worry? A: Journal bearing is proven and cost-effective. What matters most is correct oil supply/return, heat management, and tuning.