Go Fast Bits EX38 External Wastegate
Fits Most Models
7003
Overview:
The Go Fast Bits EX38 External Wastegate is a high-performance boost control component designed for a wide range of turbocharged vehicles. Featuring a 38mm valve and a compact design, this wastegate offers precise boost regulation and improved exhaust flow for enthusiasts seeking reliable and efficient turbo management. Whether you're upgrading your street car or building a track-focused machine, the EX38 delivers consistent performance while maintaining a small footprint under the hood.
With its versatile fitment and compatibility with most turbo kits, the EX38 is ideal for tuners and racers who demand durability and flexibility in their boost control setup. Its robust construction ensures dependable operation in extreme conditions, giving you confidence in your vehicle’s boost management system.
Key Features:
The EX38 External Wastegate combines advanced engineering with premium materials to provide superior performance and reliability. Key features include:
- 38mm valve diameter for excellent flow capacity and boost control precision.
- Standard 10psi spring included, with additional 5psi, 7psi, and 10psi springs available to create a range of base boost pressures from 5 to 22psi through various spring combinations.
- Compact height of only 93mm, making it one of the shortest external wastegates on the market without sacrificing flow.
- Tapered inlet flange I.D. for smooth exhaust gas transition into the valve, enhancing flow efficiency.
- Larger seat I.D. compared to other wastegates of similar size, allowing increased exhaust flow and improved boost response.
- Direct compatibility with TiAl MV-S flanges, enabling easy integration with turbo kits designed for TiAl wastegates.
- Investment cast body made from 253MA chromium-nickel stainless steel for high-temperature durability and corrosion resistance.
- CNC machined billet stainless steel valve and all stainless steel weld-on fittings and hardware for precision and strength.
- Nomex-reinforced silicone diaphragm for enhanced heat resistance and long service life.
- Internal shroud protects the valve stem from excessive heat and prevents carbon-related sticking, ensuring smooth operation.
- V-band clamp mounting system for secure, leak-free installation and easy servicing.
- Actuator housing CNC machined from billet 6061 aluminum for lightweight strength and heat dissipation.
- Manufactured in Australia under ISO 9001 quality standards, guaranteeing consistent build quality and reliability.
Construction & Design:
The EX38 wastegate is engineered with a focus on compactness and durability. Its investment cast stainless steel body provides exceptional resistance to heat and corrosion, essential for the harsh environment of turbocharged exhaust systems. The CNC machined billet stainless steel valve and seat ensure precise sealing and smooth valve movement, contributing to accurate boost control and longevity.
The tapered inlet flange design facilitates a smooth transition of exhaust gases into the valve, reducing turbulence and improving flow efficiency. The compact 93mm height allows for easier packaging in tight engine bays compared to larger wastegates, without compromising performance.
Additionally, the nomex-reinforced silicone diaphragm withstands extreme temperatures and maintains flexibility, while the internal shroud protects critical components from carbon buildup and heat damage. The billet aluminum actuator housing balances strength and weight, further enhancing durability.
Installation & Fitment:
The EX38 is designed to fit most turbocharged vehicle models, making it a versatile choice for a wide range of applications. It is directly compatible with TiAl MV-S flanges, allowing seamless integration with turbo kits originally designed for TiAl wastegates. The V-band clamp mounting system simplifies installation and maintenance, providing a secure and leak-free connection.
No cutting, drilling, or special tuning is required for installation, making the EX38 a straightforward upgrade or replacement part for your external wastegate setup.
- Fits most turbocharged models and kits.
- Compatible with TiAl MV-S flange turbo kits.
- V-band clamp mounting for easy installation.
- No modifications or special tuning necessary.
What's Included:
- EX38 external wastegate with 38mm valve
- Standard 10psi spring installed
- Additional springs available separately for custom boost settings
- All stainless steel weld-on fittings and mounting hardware
- Installation instructions
Ideal For:
- Performance enthusiasts upgrading or replacing external wastegates
- Turbocharged street cars requiring reliable boost control
- Track and race vehicles needing compact, high-flow wastegate solutions
- Tuners seeking flexible boost pressure options with multiple spring combinations
- Builders looking for durable components capable of withstanding extreme heat and conditions
