We will be closed for the Holidays: December 23rd - 26th.
Any orders placed during this time will be shipped on December 27th.
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FREE 3-Day SHIPPINGdetails...

Shipping is free via UPS Ground or 3-Day Select for orders of $25 or more (excludes transmissions). If the transit time using UPS Ground Shipping will exceed 3 days to your location, we will upgrade the shipping service to UPS 3-Day Select, at no cost to you.

Free shipping is available within the continental U.S. only. Shipping charges will apply to all other destinations.


Flowmaster has taken the laminar core of our classic HP-2 muffler and wrapped it in a new compact square case. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2.00”, 2.25” and 2.50”. These mufflers are manufactured in the USA and are covered by Flowmaster’s Lifetime Limited Warranty.

  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Patented Laminar Flow Technology
  • Lifetime Limited Warranty
  • Made in the USA




Super HP-2 Performance Muffler

T304 Stainless T409 Stainless
IN/OUT Part # Part #
2.00" 12018409
2.25" 12418304 12418409
2.50" 12518304 12518409
T304 Stainless T409 Stainless
IN/OUT Part # Part #
2.00" 12012409
2.25" 12412304 12412409
2.50" 12512304 12512409

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