2001-2010 Duramax BD Diesel Exhaust Manifold Full Bore Drivers Side (1041460)

2001-2010 GMC Chevy Duramax LB7/LLY/LBZ/LMM - BD’s Full Bore exhaust manifold restores exhaust flow balance, improves power and reduces EGT’s inside the combustion chamber. All of which is accomplished by maintaining internal bore size thus maintaining turbo drive pressure.