Caoeal Manual Boost Controller Kit | 1-30 PSI Universal Turbo Controller

Overview

The Caoeal Manual Boost Controller Kit puts you in charge of turbo boost with a compact, durable design. Crafted from aluminum and finished in black, this unit offers precise 1-30 PSI adjustment and universal compatibility through a 4AN to 1/4 hose setup. It is built for everyday reliability and versatile tuning across a wide range of turbocharged engines.

Whether you’re dialing in throttle response for daily driving, exploring more responsive performance on a spirited back road, or pursuing a measured approach to boost control on a track day, this kit provides a practical option for adjusting boost with confidence. The robust construction and straightforward design emphasize usability and long-term durability without overhauling your existing system.

What’s inside and how it helps

• Precise 1–30 PSI boost range for adaptable tuning across different driving conditions
• Universal compatibility with turbo engines and a 4AN to 1/4 hose outlet for flexible plumbing
• Durable aluminum alloy construction with rust resistance for long-term reliability
• Compact, unobtrusive profile and included installation accessories for a straightforward setup

In the box

• 1 × Caoeal turbo engine boost controller
• Installation accessories for a clean, secure install

How it works

The boost controller integrates into the vacuum line to manage boost delivery. Typical setup steps include cutting the turbine vacuum tube, installing the tee, routing the vacuum line to the controller, and attaching the pressure relief valve on the opposite end. After sealing connections, you can adjust the top screw while the engine is running to seek stable idle performance.

Installation at a glance

• Cut the turbine vacuum line and install the tee
• Connect the vacuum line to the controller and attach the relief valve on the other end
• Seal all connections well and perform a brief idle test
• Turn the adjustment screw to fine-tune idle stability and boost feel

Notes on performance

Users may notice crisper throttle response and more predictable boost delivery as they tune for different loads. Results vary with engine setup, turbo size, and existing intake or wastegate configurations. This kit does not guarantee specific outcomes.

Specifications

• Maximum PSI: 30 PSI
• Material: Aluminum alloy
• Color: Black
• Outlet Type: 4AN fittings to 1/4 hose
• Fitment: Universal for turbo engines