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Price: $580.00 - $618.00

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Headers for 1999-2001 Truck (no HD Models) and 2000-2001 Suburban, Yukon, Tahoe and Avalanche. Part numbers THY-310Y-49-C, THY-310Y-C and THY-310Y-DA-C. These are set up for trucks equipped with the 4.8, 5.3, 6.0 or 6.2 Liter engines and are CARB legal.

These Doug Thorley Tri-Y headers are constructed of 14-gauge tubing with 3/8-inch flanges to give you the best quality you can get in a header! Plus they are ceramic coated to give a lifetime of performance!

• Fits: 1999-2001 Truck (non-HD models) and 2000-2001 Suburban, Yukon, Tahoe and Avalanche

• Engine: Gen III / IV 4.8L, 5.3L, 6.0L and 6.2L (LS based engines)

• Tri-Y Design

• Tube Size: 1-5/8-inch Primary and 2-1/2-inch Collector

• Lifetime Warranty on Headers as well as Ceramic Coating

• Made in USA

• Notes None

• Free Shipping in the Lower 48!

• GM Emissions Explained

• Click here for Installation Instructions - PDF Format