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Sales & Service Hours

Sales & Service Hours

Customer Service

  • Mon - Fri: 8 a.m. - 6 p.m. ET
  • Sat - Sun: Closed


  • Mon - Sat: 8 a.m. - 11 p.m. ET
  • Sun: 9 a.m. - 5 p.m. ET

Flowmaster Pro Series Laminar Flow Mufflers

Product Information
List Price:
$177.95 - $253.54
Our Price:
$159.95 - $219.95
Product Options
Select Piping Size
  • 3" Inlet & Outlet
  • 3.5" Inlet & Outlet
  • 4" Inlet & Outlet
  • 5" Inlet & Outlet
Select Case Length


    • Most versatile Laminar Flow muffler
    • Deeper tone for great performance sound
    • 409S Stainless Steel construction
    • Low exterior heat via Cool Shell technology
    • Limited lifetime warranty

    Flowmaster has been making quality, high performing mufflers for any applications for decades. Their Pro Series exhaust is no exception and carries the Flowmaster torch with pride.

    The Flowmaster Pro Series Laminar Flow Mufflers are the most versatile muffler for performance applications. The round-cased design of the Pro Series delivers excellent sound control, giving moderate exterior sound with minimal interior resonance. At the same time, Flowmaster delivers unmatched power and performance for gas or diesel applications.

    Backed by a lifetime warranty you know that this muffler will never leave you stranded and sound incredible for years to come. Available with free shipping at RealTruck.com.


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    View Available Part Numbers For This Product Line

    California Residents: Prop 65 Warning


    Lifetime Warranty

    Flowmaster is offering a lifetime limited warranty on their stainless steel Pro Series Laminar Flow Mufflers.


    Flowmaster mufflers are designed to work with new or existing exhaust systems.  They offer slip on installation and can be welded or clamped into place.  Due to the use of heavier materials, Flowmaster recommends spot welding the joints when using clamps.  On some applications it will be necessary to cut or splice when adding Flowmaster mufflers to an existing exhaust system.