Please Note - Not compatible with all aftermarket Engine Mount kits. Some customers may experience headers coming in contact with frame depending on kit being used.

Installation Notes:

• For GM LS engine swaps into 1973-87 GM C-10/20 2WD Trucks
• 1-3/4' primary tube diameter and 3' collector diameter ideal for stock LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swaps
• Long tube design for optimum engine performance
• Mild steel construction
• Designed for use with Hooker p/n 520-12621 engine mounting brackets and 520-12646 transmission crossmember

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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