The muffler that started it all, the original 40 Series Muffler is an aggressive sounding street/strip muffler that delivers the powerful ?Flowmaster Sound? you?ve heard so much about. If you really want to hear your exhaust system and that great muscle car tone ? from both inside and outside of the vehicle - the 40 Series is for you
The Super 50 (formerly called 50 SUV) incorporates an increased case size with the innovative technology found in the 50 Series Delta Flow mufflers. The Super 50 Series? large tuning chamber allows for optimum exhaust flow, increased mileage and reduced interior resonance. This muffler is especially suited for trucks and SUVs as well as full-sized, high performance street cars looking to reduce interior resonance and tone levels for everyday driving.
The 70 Series Big Block Muffler uses a longer case for increased volume and added sound reduction that will still fit many applications where the wider 50 Series Big Block muffler won?t fit. The 70 Series Big Block utilizes Flowmaster?s patented Delta Flow Technology for maximum efficiency and minimum interior resonance. The 70 Series mufflers are perfect for high performance street cars, most trucks, SUV?s, RVs and tow vehicles that require quiet operation with improved sound.