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  DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR THE 03-04 FORD MUSTANG COBRA
Click-Here for more information on our 03 Cobra project carSTRATEGY

In keeping with our goal of providing our customers with the best possible value, we have tested a large group of components specifically designed for the 03-04 Mustang COBRA.

We have invested many hours evaluating and refining each of the Cobra products on our chassis “dyno”, to ensure that we could develop as much power as possible, as safely as possible. End result is our now available "Dyno Tuned Options".

Our site menu on the left side of this page, lists the clear winners when it comes to “performance vs. dollar” value. Please check back often as we are always developing new ways to create more horsepower.


NEW Power Options, NEW Exhaust Options, Guaranteed Savings !






FLOWMASTER American Thunder Exhaust Systems
99-04 FORD Mustang COBRA

Flowmaster Force II 3.00 Converter Back Shown

The aggressive sound of American Thunder, from Flowmaster exhaust!
The American Thunder Flowmaster exhaust system is also designed with the latest exhaust technology available. Through the same technology, you will experience improvements in acceleration, passing power, and fuel mileage.

Again the key to this performance improvements is Flowmaster's use of mandrel-bent tubing. The tubing allows for superior exhaust gas flow, while aluminized steel construction allows for its corrosion-resistant qualities. Flowmaster American Thunder exhaust systems feature Super 40 Series mufflers that'll give you plenty of that famous Flowmaster sound.

Every kit comes complete with all of the necessary hangers, clamps, and mounting hardware for an easy slip fit connection - this system can be installed in less than 1 hour. Get the power, sound and quality you need with a FLOWMASTER American Thunder Exhaust!

How does it Sound?


Part # Year Application Price
FLO-17248 99-04
    Flowmaster American Thunder Cat-Back COBRA
  • 2.50" Outlets, Super 40 Series Flowmaster Mufflers
  • Dual 2.50-inch, mandrel bent aluminized tail-pipes
  • Two 3-inch, angle cut stainless steel tips
$ 389.95

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Part # Year Application Price
FLO-17373 99-04
    Flowmaster Force II Converter Back
  • 3.00" Tubing From Catalytic Converter Back, Super 40 Series Mufflers
  • Includes Scavenger Pipe Assembly ("X-Pipe" Style) & Hardware
  • 4.00" Logo Embossed Stainless Tips, Note: This kit Requires Welding
$ 499.95

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MagnaFlow Stainless Steel Exhaust System
99-04 Mustang Cobra with IRS only

FREE U.P.S. GROUND SHIPPING - * Continental U.S. Only

We Price Match On This Item
We will match any advertised price on any MagnaFlow Stainless Steel Exhaust Component
Part # Image Year Engine Application Price
  MAG-15644 Click-Here For Image 99-04 4.6L 4v  Mustang COBRA
  • 2-½ Polished SS Muffers
  • 2-½ MagnaFlow Stainless Steel Exhaust System
  • 3-½ Stainless Steel Tips
  • $ 499.95

    Click-On Price to Order






    MAGNAFLOW TRUE-X CROSSOVER PIPES




      MAGNAFLOW X-PIPES
    Part # Year Engine Application Price
     MAG-93335 99-04 4.6L 2/4v  Mustang GT, Mach-1 & COBRA
  • 2-½ Stainless Steel Tubing
  • Tru-X Crossover Pipe
  • Hi Flow Converters
  • $ 499.00
     MAG-15445 99-04 4.6L 2/4v  Mustang GT, Mach-1 & COBRA
  • 2-½ Stainless Steel Tubing
  • Tru-X Crossover Pipe
  • Without Converters
  • $ 329.95

    Click-On Price to Order





    Super High Flow Catalytic Converters

    Have you been looking for a true emissions legal catalytic converter and not just the easily found over priced OBD-II compatible catalytic converter? Have you been looking for a true emissions legal catalytic converter that would increase horsepower and torque along with keeping the emissions at a legal level. Finally your search is over!



    These power packed mini converters are all T-409 stainless steel housing is small and compact for space and weight savings. Higher flow rates (as much as 54%) when compared to stock and most after market converters. All this performance weighs a mere 2.5 lbs and measure only 12” long.

    Installed, they only take up 7” in length. The 3' design is rated at 4,500 lbs capacity. The seamless case makes for a sturdy converter that does not rattle. The stainless steel construction 409 mini catalytic converters resist corrosion and extends the lifespan of the product.

    Pypes mini cat-converters are EPA approved in all 50 States and C.A.R.B. legal.The superior high-flow design is a must for all high performanve vehicles looking to improves performance and fuel mileage.


    Universal 409 Stainless Mini Catalytic Converters
    Part # / Description Price
      Pypes Stainless Mini-Cat
      #PYP-CVM13

      T-409 Stainless Housing
      3' Inside dia., 12'long 7'
      50 States and C.A.R.B Legal
    $ 59.95
      Pypes Stainless Mini-Cat
      #PYP-CVM10

      T-409 Stainless Housing
      2-½' Inside dia., 12'long 7'
      50 States and C.A.R.B Legal
    $ 59.95

    Click-On Price to Order





    Preformed Stainless Steel Exhaust Band Clamps

    Made in the USA, Pypes patented stainless band clamps are great for applications that require frequent un-installs. Smooth transition taper allows proper fit to seal expanded slip-fit connections. These are great for mufflers, tailpipes, merge pipe, and cat converter connections.

    Pypes Preformed Band Clamps are easy to install and disassemble sealing better than U-clamps and flat band clamps. The preformed band allows for the use of O.D. components (exhaust pipe) to I.D. components (muffler, converters).

    Unique design won't crush pipes, assuring smoother exhaust flow. Pre-attached Grade 8 bolts included for easy installation.

      Featuring

    • Stainless steel material withstands high temperatures and provides better looks.
    • Easier to install than competitive styles.
    • Pre-attached hardware for easy installation.
    • Grade 8 bolts for high temperature durability.
    • Unique design won't crush pipes,

    Universal 409 Stainless Mini Catalytic Converters
    Part # Year Description Price
    PYP-HVC13 All
    • Universal 3' 409 Stainless Steel Band Clamp
    $ 9.95
    PYP-HVC10 All
    • Universal 2-½" 409 Stainless Steel Band Clamp
    $ 9.95

    Click-On Price to Order




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