Skip to content
Enhance performance with improved sound control and efficiency.
The Flowmaster Exhaust Muffler 70 Series Big Block II is engineered for enhanced performance in various vehicles including trucks, SUVs, and high-performance street cars. Utilizing Flowmaster's Delta Flow technology, this muffler features an enlarged case that significantly improves sound control while optimizing horsepower and torque. Constructed from durable 16 gauge aluminized steel and fully MIG welded, it ensures longevity and reliability under demanding conditions.
With a design that includes a single 2-1/2 inch offset inlet and outlet, this muffler is tailored for easy installation, although modifications to the exhaust system may be necessary. The 10 inch width and 5 inch height provide a compact solution for tight spaces, while the mild to stock exterior exhaust tone minimizes interior resonance, making it suitable for everyday use.
This semi-universal muffler is recommended for a variety of applications, including motorhomes and tow vehicles, where performance and sound quality are essential. The overall length of 28 inches and a case length of 22 inches make it a versatile choice for enhancing your vehicle's exhaust system.
Features
- Improved Horsepower, Torque And Engine Efficiency
- Minimal Interior Resonance
- Mild To Stock Exterior Exhaust Tone
- Recommended For SUV, Trucks, Motorhomes And Tow Vehicles
Specifications
- Manufacturer: Flowmaster
- Manufacturer Part Number: 52573
- Shape: Oval
- Inlet Position: Offset Single
- Inlet Diameter (IN): 2-1/2 Inch
- Outlet Position: Offset Single
- Outlet Diameter (IN): 2-1/2 Inch
- Universality: Semi-Universal
- Estimated Install Time (Hours): 1
- Case Diameter (IN): 10 Inch X 5 Inch
- Case Length (IN): 22 Inch
- Overall Length (IN): 28 Inch
- Color/ Finish: Gray Painted
- Material: Steel
- Wall Type: Single Wall
- Includes Tip: Without Tip
- Tip Length (IN): Without Tip
- Tip Diameter (IN): Without Tip
- Tip Finish: Without Tip
- Tip Material: Without Tip
Compatibility / Fit
- 1975-1980 Chevrolet C10
- 1973-1986 Chevrolet C10 Suburban
- 1988-1993 Chevrolet C1500
- 1975-1980 Chevrolet C20
- 1975-1980 Chevrolet C30
- 1965-1965 Chevrolet Chevelle
- 1967-1967 Chevrolet Chevelle
- 1970-1971 Chevrolet Chevelle
- 1965-1972 Chevrolet El Camino
- 1976-1976 Chevrolet K10
- 1980-1980 Chevrolet K10
- 1973-1974 Chevrolet K10 Suburban
- 1976-1986 Chevrolet K10 Suburban
- 1975-1980 Chevrolet K20
- 1977-1977 Chevrolet K30
- 1980-1980 Chevrolet K30
- 1985-1986 Chevrolet K5 Blazer
- 1964-1964 Chevrolet Malibu
- 1970-1972 Chevrolet Monte Carlo
- 1991-1992 Dodge D350
- 2005-2007 Dodge Dakota
- 1997-2002 Ford Expedition
- 1998-2008 Ford F-150
- 2004-2004 Ford F-150 Heritage
- 1979-1980 GMC C3500
- 1986-1986 GMC Jimmy
- 1979-1980 GMC K2500
- 1979-1980 GMC K3500
- 1998-2002 Lincoln Navigator
Technical Documents
Product Videos
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
