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  See all Turbo | Supercharger products
Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A
Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 6 Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 2 Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 3 Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 4 Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 5 Tomei MX7760 EJ Single Scroll Arm Turbo Kit - TB401A-SB01A - Image 6

If you're looking to take your Subaru to the next level, the Tomei ARMS Mx8265 Turbocharger kit is worth your attention. This isn't just another turbo—it's a serious upgrade from Tomei's original M-Series design. They've packed in some impressive tech, like a lightweight billet compressor wheel and a multi-rate billet actuator, both of which really make a difference in performance.

This kit is designed for the EJ20 and EJ25 engines and can push up to 380 horsepower. That's right, you can feel the power as you hit the gas. The multi-range billet actuator is particularly cool; it's built tough with a forged construction and comes with six different springs. You can mix and match up to three springs to dial in your boost just the way you want it. Plus, the swivel type nipple gives you more flexibility when it comes to routing your hoses. It's all about making the installation process easier and more efficient.

Now, let's talk about that billet compressor wheel. It's machined from aerospace-grade materials, which means it's not just light, but also incredibly durable. The design features thinner blades and a larger surface area that significantly improves airflow and turbo spool time. You'll notice the difference in response, especially when you're pushing the limits on the track or just enjoying a spirited drive on your favorite backroads.

Specifications:

  • Model: Subaru EJ25 Single Scroll, Subaru EJ20 Single Scroll
  • Compressor Wheel:
    • (A) IND (mm): 52
    • (B) ExD (mm): 68
    • Trim: 6
    • Material: A261 (CNC Billet)
  • Turbine Wheel:
    • (C) ExD (mm): 49
    • (D) IND (mm): 56
    • Trim: 7
    • Material: K41 (Cast)
  • Compressor Housing:
    • IND (mm): 53
    • ExD (mm): 41.63
  • Turbine Housing:
    • IND: 45
    • ExD: E
    • A/R: 0.57
    • Initial Boost Setting: 1.0 kgf/cm²

Installation Instructions:

Fitment:

  • Subaru WRX EJ20 (1994-2020)
  • Subaru WRX STI EJ20 (1994-2007)
  • Subaru WRX EJ25 (2006-2014)
  • Subaru WRX STI EJ25 (2006-2007)

Note:

  • Keep in mind that all images are representational. Actual wheels may vary slightly.

This turbo kit is a solid choice for anyone looking to boost their Subaru's performance. Whether you're hitting the track or just cruising around town, you'll appreciate the extra power and responsiveness. It's all about that driving experience—make it count!

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Who is Tomei?

Tomei is one of the most recognizable brands when it comes to performance tuning. The company started in 1968 by Mr. Seiichi Suzuki and initially tuned race cars. Their concept is “To produce a great product for ultimate driving pleasure” which has translated into all their parts, making it a sought-after brand worldwide. Today, Tomei is used by various enthusiasts, tuners, professional drivers, and racers everywhere.

Racing Heritage

Tomei has its roots firmly attached to motorsports racing. With its experience in creating fast cars for decades, it was able to create parts that are considered as one of the most.sophisticated and technologically advanced parts in the market. Not only does it produce power. It ensures that it maintains its reliability as well.

The company offers a wide range of products, ranging from engine components such as camshafts, valve springs, pistons, connecting rods, cam gears, gaskets, limited slip differentials, exhaust systems, and more. Their parts are designed to perform well, not only on the streets, but on the track as well.

They have various race track records under their belt to prove it.

Purchase Tomei Products at Vivid Racing

If you want to upgrade the performance of your vehicle, then Tomei is the right brand for you. The company has consistently provided its customers with high-perfromance products that deliver what it promised. Using only the highest quality of materials available, which includes Titanium, they are able to develop parts that are strong and lightweight. This is the formula for a better performing engine. Visit Vivid Racing and check out their list of products that would fit your specific requirement.

















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Things
Sale price None
Wholesale price $1,305.08
Shipping Weight: 21.00
Length: 12
Width: 15
Height: 15
Product Added At Tuesday 03 April, 2018
Product Modified At Monday 23 June, 2025
Imported By ETLOverride
Last Edited By kathI@vividracing.com
View In Admin

Emissions Info
Carb Approved No
Carb Number -
Epa Status -
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Premier WD Inventory Type: NonStocking
$1,305.08 $1,580.00 $1,580.00 $1,422.00 ? 2025-07-09 19:57:58
Tomei Powered USA Inc $1,106.00 $1,659.00 ? ? ? 2025-06-23 11:45:36
Tomei Powered USA Inc 3 ? $1,580.00 ? ? ? 2025-07-09 16:36:12


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