You want the most power and torque you can get from your truck, SUV, or RV, and you want it with the best fuel economy possible. Flowmaster understands this need, and developed the 50 Series Big Block Muffler just for you.

The Flowmaster 50 Series Big Block cranks up the power for hauling and towing while improving efficiency and lowering engine temperatures for fewer trips to both the pump and the mechanic. The 50 Series Big Block puts out the famous Flowmaster tone you would expect from its counterparts. The tone is milder than the 40 series, with minimized interior resonance thanks to the large H-chamber design. The Big Block Muffler's chamber design also helps expel exhaust gases effectively, improving efficiency and lowering temperatures under the hood by as much as 200 degrees. Every Flowmater 50 Series Big Block Muffler is built from 16-gauge aluminized steel to stand up to corrosion , with mig welds for maximum durability.

Get the right muffler for your vehicle and maximize its performance. For your truck, SUV, or RV, nothing but a Flowmaster 50 Series Big Block Muffler will do. Backed by a 3-Year Warranty.