The debate still rages over whether a Magnaflow or a Flowmaster muffler is best. We dig deep into the question and get some help from Engine Masters $40 Muffler Dyno Test.

New attitude and proven quality team up in the latest line from Flowmaster, the Flowmaster FlowFX straight-through performance mufflers and exhaust systems.

NASCAR announced today a new multi-year agreement with Flowmaster designating it as the exclusive NASCAR Performance partner for performance exhaust system components, which include performance ...