Street Torque. Quick Response.
Introducing the PHR ST-1 Turbo Manifold, engineered specifically for the 2JZ-GE NA-T conversion. The ST-1 brings OEM-level reliability and fitment with performance-driven flow dynamics, giving your naturally aspirated 2JZ the boost-ready foundation it deserves.
Shown is a Precison Sportman Cover Turbo. We woudn't necessarily recommend you run a turbo of this size, but this shows what is capable of fitting. →
⚡ Quick Look: Key Features
- Cast from high-nickel stainless steel for maximum durability
- T4 twin-scroll flange for efficient pulse separation
- Integrated V-band wastegate port for precise boost control
- Designed for fast spool and low-RPM torque
- Compact layout for easy installation in IS300, GS300, SC300, and Supra NA-T builds
- Ideal for 400–900 HP setups, depending on turbo selection
- Crack-resistant and thermally stable under repeated stress
Features and Solutions
Focusing on what's important
Engineered for Strength
The ST-1 is precision-cast from high-nickel stainless steel, delivering superior resistance to heat and cracking compared to traditional tubular manifolds. This design eliminates weld stress points, ensuring long-term durability through countless heat cycles — perfect for street-driven or high-mileage turbo conversions.
Optimized Flow & Response
The internal flow paths are carefully sculpted for balanced exhaust distribution and efficient energy delivery to the turbine. The result — faster spool, improved torque response, and strong mid-range power that makes the car feel alive in real-world driving conditions.
Twin-Scroll Performance
Equipped with a T4 twin-scroll turbo flange, the ST-1 maximizes exhaust pulse energy and turbine efficiency. Paired with a twin-scroll turbo, it delivers exceptional throttle response and boost control without sacrificing top-end power.
Built-In, Prioritized Wastegate Port
An integrated V-band wastegate flange provides smooth flow for precise boost management. The design ensures stable control and consistent performance across varying loads and conditions.
Compact, Purpose-Built Design
Designed with street applications in mind, the ST-1 offers tight-bay clearance for easy fitment with factory accessories and maintenance accessibility. It’s a true bolt-on solution for 2JZ-GE turbo conversions — clean, efficient, and built to last.
The tits
Titanium Hardware
As an additional add on, we offer titanium hardware for both the manifold to head and manifold to turbo. You will have the option to add your titanium hardware when you click add to cart above. The PHR ST-1 Manifold is threaded for M10X1.25.
💪 The Perfect Foundation
The PHR ST-1 Turbo Manifold bridges reliability and performance — a manifold designed for the daily-driven turbo setup that doesn’t compromise on quality or response.
Complete your build
Street Torque Turbo Kit for 2JZ-GE
Take your NA-T conversion to the next level with the complete PHR Street Torque Turbo Kit — designed around the same ST-1 Turbo Manifold featured here. This all-in-one package includes everything you need to transform your naturally aspirated 2JZ into a powerful, reliable turbo setup with OEM-quality fitment and proven performance.
From manifold to intercooler piping, wastegate, oil lines, and all the small hardware in between — it’s all matched for perfect compatibility and ease of installation.
Specifications
| Vehicle Fitment | |
|---|---|
| Make | Toyota, Lexus |
| Model | Supra, SC300 (Soarer), IS300 (Altezza), GS300 (Aristo) |
| Chassis Code | A80, Z30, Z31, Z32, S160, S161, S147, CE10, XE10 |
| Generation | 1st Gen, 2nd Gen, MKIV (Mark 4) |
| Trim | Naturally Aspirated (NA) |
| Fitment | |
|---|---|
| Engine | 2JZ-GE, Non VVT-i, 2JZ-GE, VVT-i |
| Product Specs | |
|---|---|
| Construction | Cast |
| Material | Stainless steel |
| Turbine Fitment | T4 |
| Number of wastegates | Single Wastegate |
| Turbo Scroll | Twin Scroll |
| Variants | |
|---|---|
| Ceramic Coating | Uncoated or Ceramic Coated Black |
| Wastegate Flange(s) | Single Gate 44, 45 or 46mm |
