Description

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.4 IN Mandrel Bent Stainless Steel TubingFree Flow SystemIncreased Horsepower And TorqueIncreased flowIncreased MPGRace Only ProductSolely For Competition2 Year Limited WarrantyLarge Bore-HD 4 IN 409 Stainless Steel Downpipe Ford Diesel Trucks 08-10 V8-6.4L (td)