BD Diesel 1041400 Exhaust Manifold Kit High-Silicon Ductile Iron

The BD Diesel 1041400 exhaust manifold kit is an OEM-style replacement for GM LS-based truck engines. It is built to address common exhaust manifold bolt failures, using longer fasteners and added spacers that handle thermal expansion better.

Key Features:

• Made from high-silicon ductile iron to resist warping
• Uniform, increased wall thickness throughout the manifold reduces stress risers and helps prevent cracking
• Longer bolts (15mm longer) and added spacers reduce stress on fasteners
• Machined bolt mating surfaces for a secure bolted joint
• Heat shield mounting bosses with adjusted mounting locations
• Kit includes all new bolts, spacers, and gaskets
• SEMA Certification No. SC-BDD01-0136

Replaces: GM OEM part #12616285 (driver side) and #12616286, #12677665 (passenger side).

Also available separately: right only (passenger side) PN 1041401 and left only (driver's side) PN 1041402.

Emissions: This product does not require an EO in California and, by nature of its design, is legal for sale and use in all 50 states (EMS:4).

Estimated install time: 3 hours.