The MBRP S6289409 4 Inch 409SS Filter Back Exhaust is the perfect addition to your 6.7 Powerstroke truck. This systems gives you the ability to customize your exhaust note, while also providing increased durability and performance. The 4" T409 Stainless Steel construction is built to last, while the single exit, filter-back design ensures easy installation with hand tools. The mirror polished, T304 stainless steel exhaust tip adds a finishing touch that will make heads turn. Don't wait any longer, order your MBRP S6289409 4 Inch 409SS Filter Back Exhaust today!