Durable aluminized steel muffler with aggressive sound profile.
The Flowmaster 80 Series Crossflow Muffler is engineered for applications where the muffler is mounted transversely behind the rear end. This design delivers an aggressive muscle car sound, enhancing both the interior and exterior acoustics of the vehicle. Constructed from 16 gauge aluminized steel, this muffler is fully MIG welded to ensure maximum durability and longevity under various driving conditions.
With a unique two-chamber design, the 80 Series provides noticeable interior resonance while maintaining a powerful exterior exhaust tone. The muffler features a single 2-1/2 inch offset inlet and outlet, making it suitable for semi-universal applications. Its dimensions include a case width of 10 inches, height of 5 inches, and an overall length of 20 inches, allowing for a compact fit in various vehicle setups.
Installation may require modifications to the exhaust system, and the estimated installation time is approximately one hour. The Flowmaster 80 Series is an excellent choice for those seeking to enhance their vehicle's performance and sound profile.
Features
- Aggressive Sound Exterior Exhaust Tone
- Noticeable Interior Resonance
- The Original Two Chamber Design
- Cross Flow Applications
Specifications
- Manufacturer: Flowmaster
- Manufacturer Part Number: 52580
- 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): 17 Inch
- Overall Length (IN): 20 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
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.
Skip to content

