Select Vehicle
Select Vehicle

On this page you're looking at the Mazdaspeed 3 / 6 boost controller by Graveyard Performance.

Using a genuine MAC Valve, you can rest assured you're getting the best product for your money. This boost controller includes the following:

1 x Pre-Wired Mac Valve for Mazdaspeed connection
1 x 3' Spool Vacuum Hose
3 x 1/8NPT to 3/16 BARB Brass Fittings

These units are in stock, and ready to ship! 

🔧 Installation Difficulty: Basic
⏱️ Time Required: 1 hour
🔧 Tools Needed: Basic hand tools
⚠️ Tuning Required: Yes
💡 Plug-and-play hardware installation, perfect for beginners



THIS PRODUCT IS FOR COMPETITION USE ONLY. ALL OTHER USES ARE CONTRARY TO FEDERAL LAW. IF YOU INTEND THIS PRODUCT FOR HIGHWAY OR NON-COMPETITION OFF-ROAD PURPOSES DO NOT PURCHASE OR INSTALL THIS PRODUCT.

Installation Instructions

Graveyard Performance

Graveyard Performance specializes in high-quality performance and replacement parts designed for enthusiasts who demand reliability, precision, and proven results. Known for their focus on fitment, durability, and performance-driven engineering, Graveyard Performance offers products that help drivers upgrade, restore, and enhance their vehicles with confidence. Whether you’re maintaining a daily driver or building a dedicated performance machine, their parts are designed to deliver dependable performance without compromise.

View More Graveyard Performance Products