🔧 EX38 External Wastegate (38mm)
Compact High-Flow Turbo Boost Control Solution
MAXIMUM FLOW. MINIMUM SIZE. FULL CONTROL.
The EX38 External Wastegate is a compact, high-performance boost control solution designed for turbocharged applications where precise boost management and reliability are critical. Manufactured by Go Fast Bits, it combines motorsport-grade materials with a space-saving design.
⚙️ KEY FEATURES
- 38mm high-flow wastegate valve
- Supplied standard with 10psi spring
- Adjustable base boost range: 5psi to 22psi* (spring combinations)
- Ultra-compact 93mm overall height
- Tapered inlet for smooth exhaust flow transition
- Oversized seat I.D. for improved flow capacity
- Direct compatibility with TiAL MV-S flange systems
🚀 PERFORMANCE BENEFITS
🔥 Precise Boost Control
Maintains stable and repeatable boost levels across all conditions.
💨 High Exhaust Flow Capacity
Larger internal flow path reduces backpressure and improves turbo efficiency.
⚡ Faster Turbo Response
Efficient gas flow helps the turbo spool quicker and more consistently.
🔒 Stable High-Boost Operation
Designed to handle aggressive boost setups without control drift.
🧠 ENGINEERING DESIGN
The EX38 is built for performance environments where durability and precision matter:
- Investment-cast 253MA stainless steel body
- CNC-machined stainless steel valve and seat
- Billet 6061 aluminium actuator housing
- Nomex-reinforced silicone diaphragm
- Internal heat-shield shroud to prevent sticking and heat damage
- Full stainless steel hardware throughout
🏁 WHY IT PERFORMS BETTER
Unlike bulkier traditional wastegates, the EX38 focuses on:
- Reduced physical size for tight engine bays
- Improved flow efficiency despite compact design
- Stronger thermal resistance under extreme exhaust heat
- More consistent boost control under high load
🔩 SPECIFICATIONS
- Valve Size: 38mm
- Height: 93mm
- Material: 253MA stainless steel / billet aluminium
- Mounting: V-band clamp system
- Spring Options: 5psi, 7psi, 10psi (combinations available)
- Boost Range: 5psi – 22psi*
🚗 APPLICATION USE
- Turbocharged performance street builds
- High-boost track applications
- Engine bays with limited space
- Custom turbo kit installations
- TiAL flange-compatible setups
💡 WHY CHOOSE THE EX38?
Because it delivers big wastegate performance in a compact body, giving you accurate boost control, strong durability, and efficient flow without taking up unnecessary space.
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