Upper Plenum Spacer Kit for stock intake

High-quality Champion GN1 Performance upper plenum spacer kit designed for 1986–1987 Turbo Buick 3.8L SFI engines. This billet spacer increases plenum volume for improved airflow distribution and throttle response, ideal for both street and race applications.

🔵 Blue Dot – New / Excellent Condition

🔧 Specifications:
• Manufacturer: Champion GN1 Performance
• Material: CNC-machined billet aluminum
• Finish: Polished
• Includes: (1) Spacer, (3) Gaskets, (1) Hardware set
• Application: 1986–1987 Buick Grand National, Turbo T, T-Type, GNX
• Function: Adds plenum volume between the upper plenum and lower intake manifold

📦 Condition Notes:
• Brand new – never installed
• No surface wear or scratches
• Complete with gaskets and mounting bolts

💡 Why You Want It:
This Champion GN1 spacer helps increase plenum volume and improve airflow distribution to the cylinders, reducing restriction in high-boost applications. A proven upgrade for performance builds running larger turbos or increased boost pressure.

⚠️ All Turbo 6 Parts are sold as-is with no returns, refunds, or exchanges. Buyer is responsible for verifying fitment and compatibility before purchase.