Flowmaster Super HP-2 Mufflers

4.7 out of 5 stars 88 Customer Reviews

These Super HP-2 mufflers from Flowmaster are designed for use with street rods, customs, and sport trucks. They feature stainless steel construction with an internal, layered-laminar jet engine gas flow design that uses guided sound control with broadband sound cancellation for a mellow '50s tone. These mufflers support up to 400 HP, while delivering outstanding looks, durability, and sound control.