BD Diesel Full Bore Exhaust Manifold Restores Exhaust Flow Balance H760C39XL 1320/Air Draft/Supersport Model Helmets

1320/Air Draft/Supersport Model Helmets

standard 1-3/4" outlet and feature a universal inlet design to accept fittings for a 1-1/2" standard hose

extinguishers to 1-1/2"- 1-3/4" round tubing with supplied 3/4" wide stainless T-bolt bands or fastens to a flat panel

Available with arm restraints for an additional $100

BD Diesel Full Bore Exhaust Manifold Restores Exhaust Flow Balance H760C39XL 1320/Air Draft/Supersport Model HelmetsThe BD Full Bore Exhaust Manifold for the Chevy Duramax engine replaces factory driver's side "pinched down" unit, restoring exhaust flow and balances the V8 engine for smother running. Flow design will accommodate enhanced performance engines by aiding them in improving exhaust velocity to drive the turbocharger, improving power, increasing economy and lowering EGT's. Made from high silicon ductile iron, the Full Bore is a direct, bolt in replacement