Go Fast Bits GFB Boost Control Solenoid - 4 Port (3845)

2011–2025 Subaru Forester / Subaru WRX / Mitsubishi Lancer Evolution / Ford Focus ST 1.8L–2.5L Turbo

Part #: 3845

Overview

The Go Fast Bits GFB Boost Control Solenoid, part of the MAC 45 series, is a high-performance component designed for enthusiasts seeking precise boost management and reliable operation. Whether you're upgrading your turbocharged daily driver, participating in spirited driving, or tuning for optimal performance, this 4-port boost control solenoid provides the control and durability needed to enhance your vehicle's turbo system.

Built with rugged construction and waterproof features, the GFB 3845 ensures consistent boost regulation even in challenging conditions. Its compact design makes it an ideal upgrade for a wide range of turbocharged vehicles, helping you achieve more responsive throttle control and improved overall performance.

Key Features

The GFB Boost Control Solenoid is engineered with performance and durability in mind, offering several key features:

• Constructed with a waterproof female connector to withstand moisture and harsh environments, ensuring long-term reliability.
• Features 1/8" BSP threads for easy installation into a variety of turbo systems and boost control setups.
• Includes four hose tails for versatile plumbing options, allowing precise routing of vacuum and boost lines.
• Designed with a rugged, high-quality build to support consistent operation under demanding conditions.
• Optimized for accurate boost control, helping you fine-tune your vehicle's performance and response.
• Compatible with a wide range of turbocharged vehicles, making it a versatile choice for performance tuning.
• Backed by a manufacturer lifetime warranty, providing peace of mind and confidence in its durability.

Construction & Design

The GFB 3845 boost control solenoid features a robust, weatherproof housing that protects internal components from moisture, dirt, and debris. Its waterproof female connector ensures secure electrical connections even in wet conditions. The solenoid's compact, lightweight design allows for flexible installation in tight engine bays, while the precision-machined 1/8" BSP threads facilitate straightforward integration into existing boost control systems. The inclusion of four hose tails provides multiple plumbing options, enabling custom routing to suit your vehicle's specific setup. Overall, the design emphasizes durability, reliability, and ease of use, making it an excellent upgrade for both stock and modified turbocharged applications.

Installation & Fitment

The GFB 3845 boost control solenoid is designed for straightforward, bolt-on installation. Its 1/8" BSP threaded ports allow direct connection to your vehicle's boost and vacuum lines. No cutting, drilling, or complex modifications are typically required, making it suitable for DIY enthusiasts and professional tuners alike. Proper installation ensures optimal performance and longevity. As always, refer to your vehicle's specific tuning and boost control requirements when installing aftermarket components.

• Simple bolt-on upgrade for turbocharged vehicles
• Includes all necessary hose tails for versatile plumbing
• No additional tuning or modifications required for basic installation

What's Included

• 4 Port Boost Control Solenoid (Model 3845)
• Four hose tails for flexible plumbing options
• Waterproof female electrical connector
• Installation instructions and warranty information

Ideal For

This boost control solenoid is ideal for automotive enthusiasts and tuners looking to improve boost regulation, response, and reliability in turbocharged vehicles. It is suitable for street-driven cars, performance upgrades, and racing applications where precise boost control is critical for optimal power delivery and drivability.