Many racing venues are now requiring to be equipped with sound dampening devices to meet strict DB level requirements. Any vehicle that cannot meet the restrictions cannot race. Magnaflow offers a straight-through, Wide Open Performance Race Series muffler to significantly reduce DB levels on high performance vehicles without any loss in performance. The Race Series features a stainless steel body, end caps and perforated core, and a stainless weld bead. This product ships in approximately 1 days