Flowmaster offers a wide variety of mufflers and exhaust systems for most popular vehicle applications that produce that deep, legendary Flowmaster sound in mild, moderate, aggressive, and very aggressive tones. Flowmaster universal replacement mufflers are available in a number of sizes and configurations and aluminized or stainless steel construction. In this video, Steve discusses the differences between a straight-through or "Glass Pack" style muffler and Flowmaster's Laminar Flow mufflers.