SKU: TS-19TH66B-T3110
Turbosmart B Frame T3 1.10AR 66mm Turbine Housing for Subaru WRX STI 2004-2021 Nissan 240SX 1989-1998
This Turbosmart B Frame turbine housing features a T3 divided inlet and 1.10 A/R ratio paired with a 66mm turbine wheel for quick spool and strong mid-range torque in performance builds. It bolts directly to compatible B Frame compressor housings and fits T3 twin-scroll manifolds on Subaru WRX STI Nissan 240SX and similar vehicles. Drivers gain reliable power delivery up to 550hp on 2.0-3.0L engines with compact packaging for tight engine bays.
Key Features
- T3 Divided Inlet: Matches twin-scroll manifolds for reduced backpressure and faster turbo response across RPM range
- 1.10 A/R Ratio: Balances low-end spool with high-RPM flow for street and track driving
- 66mm Turbine Wheel: Supports 350-550hp applications with efficient exhaust energy extraction
- NiResist Material: High-temperature cast iron withstands extreme heat and thermal cycling
- V-Band Outlet: Simplifies installation and service with secure leak-free connection
Product Notes
- Pair with Turbosmart B Frame 66mm compressor housing and Inconel turbine wheel for complete assembly
- Inspect manifold flange for proper alignment before installation
- Ships in protective foam-lined box 12x12x10 inches
Installation Notes
- Professional installation recommended.
- Torque V-band clamps to 8-10 Nm using anti-seize compound
- Compatible with standard T3 twin-scroll bolt pattern and V-band wastegate provisions
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2021 | Subaru | Impreza | WRX STI |
| 2002-2007 | Subaru | Impreza | WRX |
| 1989-1998 | Nissan | 240SX | S13 S14 |
| 1995-2002 | Nissan | Silvia | S15 |
| 1993-1998 | Toyota | Supra | MK4 2JZ-GTE |
| 1989-1994 | Nissan | Skyline | R32 RB20 RB25 |
Why Choose Turbosmart?
- Motorsport heritage with World Rally and Time Attack wins
- Investment cast components for consistent flow and durability
- Australian engineering focused on daily drivability and power gains
Frequently Asked Questions
- Q: Will this housing fit my Subaru STI with T3 manifold?
A: Yes it bolts to factory or aftermarket T3 divided manifolds on 2004-2021 STI models using standard hardware - Q: What material resists turbine housing warping?
A: NiResist single-piece casting handles 1600F+ exhaust temps without distortion - Q: What warranty coverage applies?
A: Turbosmart provides 24-month warranty against manufacturing defects with registration
Shipping & Handling
- Method: UPS Ground or FedEx Home Delivery
- Availability: In stock – ships same or next business day
- Packaging: Foam protected in 12x12x10 inch box
- Weight: 9.92 lbs (4.5 kg)






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