Flowmaster 80 Series CrossFlow Muffler - 2.50 Offset In/2.50 Dual Out 42583

Item #22136

Made in the USA
Flowmaster 80 Series CrossFlow Muffler - 2.50 Offset In/2.50 Dual Out 42583
42583 CrossFlow 80 Series Muffler
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80 Series Crossflow Muffler - 2.50" IN (O) / OUT (D) - Aggressive Sound


  • The original two chamber design
  • Cross Flow Applications
  • Noticeable interior resonance
  • Aggressive Sound Exterior Exhaust Tone

The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.


(1) 42583 CrossFlow 80 Series Muffler


Automotive Item Grade: High Performance
Body Height (in): 4
Body Length (in): 15
Body Width (in): 9.75
Brand: Flowmaster
California Proposition 65 Required: No
Color: Black
Emission Code: 5
Fitment: Universal
Inlet Connection Type: Pipe Connection
Inlet Diameter (in): 2.5
Inlet Position: Offset
Material: Aluminized Steel
Mount Type: Uses New Hangers (Not Included)
Muffler Series: 80 Series Crossflow
Muffler Type: Reflection
Outlet Connection Type: Pipe Connection
Outlet Diameter (in): 2.5
Outlet Position: Dual
Overall Length (in) 21
Product Type: Street Mufflers
Shape: Oval
Sound Level: Aggressive Sound
Part Number: 42583


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


3 Year Manufacturers Warranty

Warranty for Part# 42583


Universal Muffler – Not a direct fit. Some adaptation required.

Eastwood Offers Free Lifetime Technical Support

Click here for product SDS information

Attention California Residents - Proposition 65

Proposition 65 Warning WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov


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