aFe Large-Bore HD 4in 409SS Down-Pipe 08-10 Ford Diesel Trucks V8-6.4L (td) 49-43025-1

aFe Downpipes 49-43025-1 The Large Bore-HD down pipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4" down pipe provides maximum flow for increased horsepower, torque and throttle response. The increased air flow also lowers EGT's and helps improve MPG. All hardware and components are included for a no-trouble installation.All aFe exhaust systems are engineered and manufactured in our Corona, California facility. Large Bore-HD 4 IN 409 Stainless Steel Downpipe Large Bore-HD 4 IN 409 Stainless Steel Downpipe Ford Diesel Trucks 08-10 V8-6.4L (td) aFe Large-Bore HD 4in 409SS Down-Pipe 08-10 Ford Diesel Trucks V8-6.4L (td)