Tomei J/B Turbocharger Kit Arms SR20DET SR20 / MX7960 SR20DET
Tomei J/B Turbocharger Kit Arms SR20DET
Shipping calculated at checkout.
To United StatesChange
Final options and totals are confirmed at checkout.
Available to order
Shipping & returns
Available to order. Contact us before ordering to confirm lead time.
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
J/B Turbocharger Kit Arms
| Category | Engine | Parts Number |
| MX7960 SR20DET | SR20 | TB401A-NS08A |
| MX8270 SR20DET | SR20 | TB401A-NS08B |
Descriptions:
1. TB401A-NS08A
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 Mx7960 Turbocharger Kit includes turbocharger, and all associated gaskets, lines, and hardware needed for install on your SR20. This turbocharger kit is rated for an approximate 400HP, depending on supporting mods.
The Tomei Mx7960 works well to suit the SR's mid-range characteristics, whilst still being a good performer up towards the higher power band. The Mx8270 however, even being a bolt on application will deliver the punch of a full peak power type turbo 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
- 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) : 53.5
- ExD (mm) : 38.75
- A/R : 0.62
Turbine Housing
- IND : T25
- ExD : SR20DET
- A/R : 0.57
Initial Boost Setting
- 1.0kgf/cm2
2. TB401A-NS08B
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 Mx7960 Turbocharger Kit includes turbocharger, and all associated gaskets, lines, and hardware needed for install on your SR20. This turbocharger kit is rated for an approximate 450HP, depending on supporting mods.
The Tomei Mx8270 delivers a higher overall power than the Mx7960, whilst being a big performer up towards the higher power band. The Mx7960 turbo produces good mid-range power and suits the SR's mid-range characteristics.
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) : 59
- (B) ExD (mm) : 76.2
- Trim : 60
- Blades : 6
- Material : A2618
- Production : CNC Billet
- (C) ExD (mm) : 58.8
- (D) IND (mm) : 67
- Trim : 77
- Blades : 11
- Material : K418
- Production : Cast
- IND (mm) : 60
- ExD (mm) : 38.5
- A/R : 0.62
- IND : T25
- ExD : SR20DET
- A/R : 0.57
- 1.0kgf/cm2
Proposition 65
WARNING: Cancer and Reproductive Harm
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989 - 1998 | Nissan | 240SX | Base, SE |
| 1991 - 1998 | Nissan | 240SX | LE |
| 1989 - 1990 | Nissan | 240SX | XE |
