The Thrush 89021 is a header back kit for 1967-1974 Chevrolet Camaro, 1969-1974 Chevrolet Nova, 1967-1974 Pontiac Firebird, built with a transverse muffler configuration. Pipe diameters are increased from OEM sizing to improve flow, and the kit is manufactured with precision benders and fixture-checked for a proper, easy installation.

Thrush 89021 Features:

• Pipe Diameter: 2.5 in.
• Pipe Material: Steel
• Pipe Finish: Aluminized
• Bend Type: Mandrel
• System Style: Header Back
• System Type: Dual
• Muffler Type Included: Thrush Turbo
• Muffler Count: 1
• Muffler Material: Steel
• Muffler Finish: Aluminized
• Tip Shape: Round
• Tip Material: Steel
• Tip Finish: Aluminized
• Clamp Count: 12
• Hardware, Clamps, and Hangers Included
• Kit Contents: Adapters, Intermediate Pipes, H-Pipe, Muffler, Tail Pipes, Clamps, Flanges, Hangers
• Direct-fit application for 1967-1974 Chevrolet Camaro, 1969-1974 Chevrolet Nova, 1967-1974 Pontiac Firebird

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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