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Tomei MX8265 Turbo Kit Arm Subaru EJ Single Scroll Subaru WRX | STI 02-22

Tomei MX8265 Turbo Kit Arm Subaru EJ Single Scroll Subaru WRX | STI 02-22

Regular price $1,580.00
Regular price Sale price $1,580.00
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The new Tomei ARMS Mx-Series Turbocharger improves upons Tomei's original M-Series turbocharger design with the inroduction of a new lightweight billet wheel, multi rate billet actuator, and the very same ARMS technology Tomei is known for!

The Tomei ARMS Mx8265 Turbocharger kit for the EJ20/25 is a 450HP capable kit

CNC Billet Compressor Wheel

The newly designed Billet Compressor Wheel offers significant improvement over traditional cast compressor wheels. Machined from aerospace grade materials, these highly durable lightweight compressor wheels feature thinner blades with a larger surface care for significantly improved airflow and turbo spool.

Multi Range Billet Actuator

A large capacity multi rate billet actuator is utilized, with a reinforced forged billet construction. Includes a total of 6 springs for fine boost adjustments. Up to 3 springs can be combined to find the perfect setup. Swivel type nipple allows for greater freedom when routing hoses.

Compressor Wheel

  • (A) IND (mm) : 54.
  • (B) ExD (mm) : 76.
  • Trim : 5
  • Blades :
  • Material : A261
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 58.
  • (D) IND (mm) : 67.
  • Trim : 7
  • Blades : 1
  • Material : K41
  • Production : Cast

Compressor Housing

  • IND (mm) : 55.
  • ExD (mm) : 44.2

Turbine Housing

  • IND : 41.
  • ExD : E
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2


  • Subaru WRx | STI 02-22
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