SPOOLOGIC LB7 Downpipe Fastener Kit

The SPOOLOGIC SL-320-031 Downpipe Fastener Kit supplies replacement downpipe hardware for 6.6L Duramax LB7 applications.

What's Included

• 4 SPOOLOGIC Bolts
• 2 SPOOLOGIC Studs
• 2 SPOOLOGIC Nuts
• 6 SPOOLOGIC Washers

Fitment

• 2001–2004 Chevrolet Silverado GMC Sierra 2500 3500 — 6.6L Duramax LB7

Related Downpipe Gaskets

Downpipe gaskets are sold separately and are not included in this fastener kit. Choose the gasket that matches the truck’s emissions configuration and installed turbocharger.

• SPOOLOGIC Turbo Downpipe Gasket SL-310-033 — Federal Emissions
• SPOOLOGIC Turbo Downpipe Gasket SL-310-034 — California Emissions

1-Year Limited Warranty

Every SPOOLOGIC bolt kit is covered by a 1-Year Limited Warranty against defects in materials and workmanship from the date of purchase. Warranty coverage requires that the failed hardware first be shipped back to SPOOLOGIC for inspection. If SPOOLOGIC determines the failure was caused by a defect in materials or workmanship, the hardware will be replaced at SPOOLOGIC’s discretion. Warranty does not cover damage from improper installation, incorrect torque, over-tightening, cross-threading, reuse of stretched or previously torqued fasteners, exposure to temperatures beyond the fastener’s rated operating range, corrosion from road salt or contaminated environments, use outside the listed fitment, cosmetic wear, or normal heat cycling marks. Warranty does not cover labor, shipping, towing, downtime, broken extractors, or any other costs outside the bolt kit itself. See the SPOOLOGIC Warranty Policy for complete terms.