If you are looking for the original "e;Flowmaster Sound"e; the 40 Series is the one. The performance street and strip muffler will also generate interior resonance within the vehicle. So if you want to really hear your exhaust system inside as well as outside the vehicle the 40 series is for you. Application Recommendations:

• Off Road and Race Applications
• Aggressive Tone For Early Street / Strip Cars
• Early Generation Muscle Cars

The Super 44 is the most aggressive, deepest sounding street and strip muffler Flowmaster has ever made! The Super 44's Maximum performance and Improved flow path will generate more torque and more power than ever before! If you want to really hear your exhaust system inside as well as outside your vehicle the Super 44 is for you. Application Recommendations:

• Off Road and Race applications
• Aggressive Tone for Early Street/Strip Cars
• Early Generation Muscle Cars
• Vehicles with dual exhaust
• Late Model Muscle Cars

• Super 44 Internal Design for Maximum Performance
• 4"e; Thick Case
  
• 14 Gauge Diamond Plate Case
• 10 X stronger than standard mufflers!
• 2.50"e; In (O) / 2.50"e; Out (C)
  
• 4"e; x 9.75"e; x 12"e;

The Super 40 5X10-inch case design, modeled after our Top Ten race mufflers, gives you a deeper tone that retains our famous 40 Series sound and feel. The classic black case maintains that original Flowmaster look. Application Recommendations:

• High horsepower street cars
• Deep performance tone
• Reduced Interior Resonance
• Increased flow path radius
• Vehicles with dual exhaust

The 40 Series Delta Flow is a milder sounding street and strip muffler that generates a powerful, aggressive sound outside the vehicle, a lower interior resonance while improving your torque and horsepower. Application Recommendations:

• Late-model Performance Car
• Reduced Interior Resonance
• Performance Tone

The Flowmaster 50 Series Delta Flow mufflers is designed to produce a mellow, deep sound in most vehicle and truck applications. It is milder than the 40 Series mufflers on the outside of the vehicle, and is significantly quieter inside the vehicle, yet it still has the right performance sound and feel. Application Recommendations.

• Street/Strip Vehicles & Sport Trucks
• Early/Late model Street Rods
• Performance Vehicles
• Vehicles with dual exhaust

Our 50 Series™ H.D. muffler is Designed primarily for today's higher horsepower trucks such as the Dodge HEMI. This muffler will perform well on various vehicles when a deeper, more aggressive tone is desired. This new muffler features a 4.00-inch internal design, which is ideal for trucks with modified engines. It is built from 16 gauge aluminized steel and comes with various inlet/outlet configurations. Application Recommendations:

• Dodge Ram Hemi's
• Trucks with engine modifications
• Turbo Diesel Applications

The SUV-Performance muffler is a larger version of Flowmasters 50 Series muffler and is specially designed for trucks,SUVs and cars with large displacemnet engines. This version of the 50 Series muffler features a special tuning chamber which reduces interior resonance. Application Recommendations:

• Large displacement street cars
• Early era muscle cars
• Sport utility and truck applications
• Vehicles with dual exhaust

The 50 Series "e;Big Block"e; muffler is our largest muffler for tow vehicles, trucks, large SUV and Recreational Vehicles. These mufflers are made for more than just big cubic inch engine applications. It has a very large H-Chamber to reduce theinterior resonance in large cab areas of vehicles and enough case volume to handle engines under heavy loads. Application Recommendations:

• Motorhomes/RV's
• SUV Applications
• Late Model Hemi Trucks
• Diesel Applications

The 60 Series Performance muffler is designed specifically to bring Flowmaster performance to smaller cars and trucks with small displacement 4 and 6 cylinder engines. All 60 Series mufflers feature Delta Flow technology for increased torque, horsepower and reduced interior resonance. Application Recommendations:

• HighPerformance Street/Strip applications
• Small Displacement 4 and 6 Cylinder vehicles
• Sport Compact

The 70 Series Big Block II is designed using a large Flowmaster case for maximum volume and efficiency. The case is two inches narrower than Flowmaster's original Big Block Muffler, making for easier installation in tight applications. The 70 Series offers a mild mellow exhaust tone and incorporates a Resonant Tuning Chamber for reduced interior sound levels. Application Recommendations:

• High Performance applications
• Late model trucks
• Tow vehicles and RVs
• Vehicles with dual exhaust

The 80 Series performance street muffler is specially designed for applications where the muffler must be mounted transversly (cross-flow) behind the rear axle, either to match an OEM system or for increased ground clearance. The 80 Series is a true crossflow with single or dual inlet/dual outlet configurations and produces an aggressive muscle car sound. Application Recommendations:

• Cross-Flow applications
• 1982-2002 Camaro and Firebird
• Buick Grand Nationals and T-Types
• Street Rods
• Whenever ground clearance is an issue

Built in both finished T409 and ready to polish T304 stainless steel, Hushpower II's are ideal for limited-space installations, as they can be placed in multiple locations within the exhaust system. Hushpower II's stainless steel internal design utilizes such innovations as Cool Shell Technology, which is part of both the sound and heat control. Application Recommendations:

• Ideal for Street Rods and Customs
• Limited-space installations
• Jeep and Off-Road applications