Flowmaster 70 Series


Flowmaster 53070   Flowmaster 60 Series
 Flowmaster 70 Series (TM) Big Block II (TM); 10 Inch Width X 5 Inch Height Aluminized Steel Case; Single 3 Inch Center Inlet; Single 3 Inch Center Outlet; 22 Inch Body/28 Inch Overall Length; Modifications To The Exhaust System May Be Necessary For Installation



SKU: 53070 Category: Brand


The Flowmaster 70 Series muffler

The Flowmaster 70 series Big Block II muffler uses a longer 5 Inch X 10 Inch case for increased volume and added sound reduction that will still fit many applications that our wider 50 series Big Block muffler won’t fit. It 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.

PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov


Flowmaster 70 Series Muffler

Shape: Oval
Inlet Position: Center
Inlet Diameter (IN): 3 Inch
Outlet Position: Center
Outlet Diameter (IN): 3 Inch
Overall Length (IN): 28 Inch
Color/ Finish: Aluminized Gray
Case Diameter (IN): 10 Inch X 5 Inch
Case Length (IN): 22 Inch
Material: Steel
Includes Tip: No
Tip Length (IN): No Tip
Tip Diameter (IN): No Tip
Tip Finish: No Tip
Tip Material: No Tip
Wall Type: Single Wall
Internal Construction: Three Chambered

  • Stock To Mild Exterior Exhaust Tone
  • Minimal Interior Resonance
  • Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
  • Improved Horsepower/Torque And Potential Mileage Improvement
  • Race Proven Patented Delta Flow Technology Designed For Maximum Horsepower And Torque
  • Limited 3 Year Warranty

Visit a FMS Performance Center today and pick up the all new Flowmaster 70 Series muffler

We offer FREE shipping on this product.  For professional installation near San Bernardino, Redlands, Riverside give us a call at 909-888-5020 Near Palm Springs, Cathedral City, Rancho Mirage, Palm Desert, Indio call 760-321-2896 All other areas call 1-800-833-0945 or click a link below.

Additional information

Weight 10 lbs