Banks Power 08-10 Ford 6.4L (All W/B) Monster Exhaust System - SS Single Exhaust w/ Chrome Tip4 inch constant diameter DPF back. Improves flow up to 50 Percent and cuts backpressure up to 40 Percent, allowing the engine to produce more horsepower. Includes Huge Polished Chrome or Cerakote Black Patented SideKick tip. Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy. The Monster Exhaust system cools while flowing up to 50% better than