Skip to product information
1 of 4


Flowmaster 8425454 2.5 IN(D)/2.5 OUT(D) SUPER 44 409S

Regular price $183.77 CAD
Regular price Sale price $183.77 CAD
Shipping calculated at checkout.
Super 44 Series Muffler; 2.5 in. Inlet/Outlet; Case Dimension 4 in. x 9.75 in. x 13 in.; Dual Inlet/Outlet; 409 Stainless Steel; Not Direct Fit; Adaptation Required;
Flowmaster's Super 44 muffler delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing 2-chamber street muffler we've ever built! Available in 409S Stainless Steel with a Lifetime Limited Warranty, these mufflers feature our advanced Delta Flow Technology design and are fully MIG-welded for maximum durability. This new dual in/dual out design is perfect for applications that require one muffler for both exhaust pipes to pass through and has 2.50 inlets and outlets with 3.50 internals for maximum performance.
  • Durable Fully Welded 16ga Aluminized Steel
  • Limited Lifetime Warranty
  • Mild to Moderate Exterior Exhaust Tone
  • Minimal Interior Resonance
  • Excellent Choice For Street Rods Cars and Trucks
  • Improved HP/TQ and Potential Mileage Improvement
  • Race Proven Patented Delta Flow® Technology
  • Premium Flowmaster Quality
  • Made in the USA

Application Summary:

Year Make/Model
Universal Muffler-Not a direct fit. Some adaptation required.