SKU: 31959970481

Tomei J/B Turbocharger Kit Arms EJ SINGLE SCROLL

$922.05 $1024.50
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Description

Tomei J/B Turbocharger Kit Arms EJ SINGLE SCROLLJ B Turbocharger Kit Arms Category Engine Parts Number MX7760 EJ SINGLE SCROLL EJ20; EJ25 TB401A SB01A MX7960 EJ SINGLE SCROLL EJ20; EJ25 TB401A SB01B MX8265 EJ SINGLE SCROLL EJ20; EJ25 TB401A SB01C MX7960F EJ SINGLE SCROLL EJ20; EJ25 TB401A SB01D Descriptions: 1. TB401A SB01A 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

J/B Turbocharger Kit Arms 

Category  Engine  Parts Number 
MX7760 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01A
MX7960 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01B
MX8265 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01C
MX7960F EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01D

 

Descriptions:

1. TB401A-SB01A

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 380HP 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) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 49.1
  • (D) IND (mm) : 56.0
  • Trim : 77
  • Blades : 12
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.6
  • ExD (mm) : 41.63

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

2. TB401A-SB01B

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 400HP 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) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 54
  • (D) IND (mm) : 61
  • Trim : 79
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.6
  • ExD (mm) : 41.63

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

3. TB401A-SB01C

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) : 54.8
  • (B) ExD (mm) : 76.2
  • Trim : 52
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 58.8
  • (D) IND (mm) : 67.0
  • Trim : 77
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 55.8
  • ExD (mm) : 44.2

Turbine Housing

  • IND : 41.5
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

4. TB401A-SB01D

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 Mx7960F Turbocharger kit for the EJ20/25 Non STI is a 400HP 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) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 54
  • (D) IND (mm) : 61.0
  • Trim : 79
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.46
  • ExD (mm) : 44.2

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx 02-22

*** Note(s)

  • All images are representational only, actual wheels may differ slightly.

 *** Proposition 65

WARNING: Cancer and Reproductive Harm

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31959970481

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4.5 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
Alex
Birmingham, US
★★★★★ 5
Our Pit Bull’s Favorite Toy!
Color: A-Navy, Color: A-Navy
We absolutely love this MAXBECK bear toy! We’ve ordered it 4 times over the last 8 months because our senior pit bull is obsessed with his “babies.” He always has one close to him and even cuddles with them. The material is very sturdy and holds up amazingly well even with rough play. My dog’s favorite part is the squeaker. What I love most is that even after he finally tears into it, the rope built inside becomes a whole second toy for him and keeps the fun going. If you have a heavy chewer who destroys toys quickly, this one is definitely worth trying!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
Verified Purchase
MEV
Bozeman, US
★★★★★ 3
Not indestructible
Color: C-Navy+Oak, Color: C-Navy+Oak
I assume it is probably hard to create an indestructible product, but my puppy had it apart in no time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
N
Verified Purchase
Nirpno
Lowell, US
★★★★★ 2
NOT DURABLE, LONG-LASTING, OR USEFUL
Color: A-Navy, Color: A-Navy
I gave this dog toy 2-stars based on my dog toy rating system (DTRS) for “Albert” the Blue Bear! Safety (1-rating): Albert fell apart after 4-hours of use. 1. The ears were chewed off and I was only able to find one of them, which means my dog swallowed the other ear. Very big concern as it depends on how big your dog is to pass this object. The ear is about the size of 1.5-quarters. 2. The tail was almost chewed off entirely and was hanging on by a thread before I threw it out. 3. After the ears came off, the inside foam started to come out, which raised my concern for my dog’s saftey. 4. The entire body was soft and did not cause any harm to teeth, gums, paws, nose, etc. Durability (3-rating): 1. The ears and tail are the weakest parts of Albert as they can easily be chewed off. 2. The body is durable enough to sustain 4-hours of use, as I threw Albert out after the ears and tail were torn off within 4-hours. 3. The small squeaker inside Albert’s belly was broken after 15-minutes of use. Thank Goodness! 4. My next concern was how long the arms and legs would last; TBD! Squeaker (1-rating): 1. Small plastic squeaker, the size of a half-dollar, with a high pitched noise. Fatality (2-rating): 1. Albert was put to rest after 4-hours of use as I was concerned for the safety of my dog with continued use. 2. If Albert didn’t come with ears or a tail, I can only imagine how long he would’ve survived as the material seemed to be durable enough to withstand continued use. In conclusion, “Albert” the Blue Bear is not worth the money for a toy that falls apart after 4-hrs of use and with the concerns of safety. I was surprised that it was only 8-inches tall, next time I’ll confirm the size of the toy before I purchase the next one. About my dog “Cannoli” for comparison: Breed: Blue Healer / Lab mix Weight: 40-lbs Energy Level: High Age: 7-months Chew Rating: Aggressive
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2025
S
Verified Purchase
Steven D'Arcangelo
Lexington, US
★★★★★ 3
The dog won!
Color: A-Navy, Color: A-Navy
It’s not indestructible. Wonder if I can get a refund or another toy. It did last longer than most so I give them credit for that!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
H
Verified Purchase
Heidi fishel
San Leandro, US
★★★★★ 5
Almost good enough
Color: E-Navy+Purple
My dog chewy can rip through anything, even these. I do love the toys they’re great. They’re made with coconut on the inside, but could somebody please!, make a chew toy worthy of my dogs teeth, cause this ain’t it. But it is the strongest so far . I would recommend it. My doodle chewy short for Chewbacca is insane about chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026

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