Tomei ARMS M7960 Turbo Kit - Subaru Impreza WRX & Impreza WRX STi

Regular price $1,490.00 USD $1,344.73 USD

In Stock! Special Order! Ships in 10+ weeks

Part # 173023

The Tomei ARMS M7960 Turbo Kit for the 2002-2005 Subaru Impreza WRX GD and 2004-2014 Subaru Impreza WRX STi is one of the the best 100% bolt-on turbo kit in the market for OE low end response and great mid-to-high improvements. It exceeds mid-to-high figures of power and torque from the OE turbo kit while taking full advantage of the EJ engine.

If you are looking for a good bump in power and hassle free turbo upgrade that doesn't vary too much from OEM characteristics this is the ideal turbo kit upgrade for you.

  • Subaru Impreza WRX [GD] (2002, 2003, 2004, 2005)
  • Subaru Impreza WRX STi [GDB] (2004, 2005, 2006, 2007)
  • Subaru Impreza WRX STi [GRB] (2008, 2009, 2010, 2011, 2012, 2013, 2014)
  • Subaru Impreza WRX STi [GVB] (2011, 2012, 2013, 2014)


100% Full Bolt-On Kit
Boost builds up in similar fashion to OE, smooth not sluggish or abruptly
Low-end response remains the similar to OE despite being a much larger turbo
Mid and Peak power is much greater than the OE turbo
Maintains high pressure at high RPM
Over 400 HP is easily possible
Best balance of high power and low end response
1 year warranty with repair parts easily available
Made in Japan

Extended Information

Kit Type: Bolt-on Turbo Upgrade
Includes: Turbo, Billet Actuator, Waterline, Oil Return Line, Compressor Out Hose, Gaskets, and Bolts
Turbo Type: ARMS M7960
Compression Wheel
Trim: 60
Entrance: 52.6 mm
Outer: 68.0 mm
Turbine Wheel
Trim: 78.4
Outer: 54 mm
Exit: 61 mm
Blade: 12
Engine: EJ205 & EJ257
Chassis: GD / GRB / GVB
Warranty: 1 year

Customer Reviews

Customer Questions


In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

All international orders outside of the USA are subject to duties and taxes per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.