PPE 116111000 High-Flow Exhaust Manifolds w/Up-Pipes

LB7 Federal emissions kit   Features: - Manifolds cast from Hi-Sil Moly iron - Provide up to a 20% reduction in drive pressures - Provide up to a 200°F decrease in EGTs - Built-in bosses that are drilled and tapped for 1/8-inch NPT make...