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  DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR THE 96-01 FORD MUSTANG COBRA
 RPM OUTLET.COMSTRATEGY

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 96-01 Mustang Cobra.

We have invested many hours evaluating and refining each of the 4.6L Cobra products on our MD chassis DYNO, to ensure that we could develop as much power as possible, as safely as possible.

The 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.





SLP STAINLESS STEEL POLISHED CERAMIC 1-3/4' FULL LENGTH HEADERS

RPM Outlet is proud to introduce a new and exciting product from SLP, their newly designed, precision-engineered STAINLESS STEEL polished ceramic Full Length Headers

Now owners of the 99-04 MUSTANG COBRA and MACH 1 models can now bolt-on major horsepower and torque increases while maintaining OEM quality and reliability for everyday street use.

SLP full-length Header and PowerFlo-X Crossover Pipe systems have delivered consistent gains of 28-38 rear wheel horsepower, and ft./lbs of torque when tested by such magazines as 5.0 and Muscle Mustangs & Fast Fords.


slp  cobra mach 1 headers always in stock

Built from computer mandrel-bent 1 3/4" primaries and venturi-style velocity collectors, 3/8" thick laser-cut flanges, and standard polished ceramic finish, these systems deliver un-matched quality at very affordable prices. PowerFlo-X Crossover Pipe also available to make installation a direct bolt-in procedure.

    SLP 1 3/4" Full Length Headers Feature:

  • Mandrel bent 1 3/4" 304 stainless steel primary tubes
  • Aluminum-ceramic-coated to keep heat in, exhaust velocities up, and under-hood temperatures down
  • Single Port Flanges prevents gasket falure
  • Compatible with all factory emissions equipment
  • Complete with nuts, bolts, hardware, and 02 harness extensions
  • Includes detailed instructions and all necessary installation hardware—no additional fabrication required!
  SLP MANDREL-BENT 304 STAINLESS STEEL POLISHED CERAMIC 1-3/4' FULL LENGTH HEADERS
Part # Year Engine Model Application Price
SLPM30002 99-04 4.6L-4V
  • Cobra
  • Mach I
    • Stainless Steel Polished Ceramic Full Length Headers
    • Mandrel bent 1 3/4" 304 stainless steel primary tubes
    • Aluminum-ceramic-coated
    $ 899.95
    M-9448-A462
    • High-temperature steel core/graphite faced exhaust header gasket
    • Designed for 4.6L SOHC Heads, packaged 2 per set
    $ 29.95
    RPM003020 88-04 - -
      Ford Oxygen Sensor Simulators, 1 pair (pair)
    $ 59.95
    RPM003322 88-07 - -
      Ford Oxygen Sensor Extensions, 1 pair (pair)
    $ 39.95

    Click-On Price to Order




    SLP PowerFlo-X Crossover Pipe, Short Assembly
    1996-04 4.6 SOHC/DOHC Mustang w/Cats

    with cats shown



    Free breathing and more power for your Mustang.

    The perfect complement to the SLP long-tube headers and are an excellent complement to their "Loud Mouth" cat-back systems, these X-pipes use free-flowing mandrel-bent tubing and a genuine X crossover to provide a significant horsepower increase over the restrictive stock cat pipes. SLP gave them a three-piece design for versatility and easy installation; and you can get them with or without high-flow catalytic converters, depending on your needs. .


    NOTES: For use with SLP Long-Tube Headers. May not be compatible with other long-tube header designs. Not legal for use on pollution-controlled motor vehicles.


      SLP PowerFlo-X Crossover Pipe, Short Assembly for Full Length Headers
    Part # Year Application Price
    SLPM31034 96-04
      2½ X Pipe, X Pipe, Short with Converters
      (long-tube header style)
    • All Mustang, 4.6L, All
    • T-304 Stainless Steel
    $ 305.95
    RPM003020 88-04
      Ford Oxygen Sensor Simulators, 1 pair (pair)
    $ 59.95
    RPM003322 88-07
      Ford Oxygen Sensor Extensions, 1 pair (pair)
    $ 39.95

    Click-On Price to Order


    DISCLAIMER: This product is not legal for sale or use on any pollution controlled motor vehicles. Legal in California only for racing vehicles which may never be used on U.S. highways. Not legal for sale or use in the state of California, nor in states which have adopted California emission standards.

    Click-On Price to Order




    SLP Modular T-304 Stainless Steel Cat-Back Systems
    1996-04 4.6 SOHC/DOHC Mustang

    SLP Performance modular cat-back exhaust systems are built from aircraft-quality T-304 stainless steel -- stainless inside and out, not mild steel, not aluminum, not coated aluminum, not just wrapped with stainless on the outside for show. Coating techniques, such as aluminizing, can somewhat prolong the life of mild steel, but coatings suffer at the weld points. And, comparing aluminized steel to T-304 stainless steel is like comparing gold-plated metal to solid gold! T-304 stainless steel has the highest chromium content, making it the most resistant to corrosion, and therefore the most desirable material for a long-lasting exhaust system.


    always in stock

      SLP " LOUD MOUTH "
      1999-04 Mustang Cobra (modular) :


    • Added a consistent 25+ rwhp
    • Employs SLP’s exclusive modular technology
    • switch between muffler and resonator types in a matter of minutes
    • Loud Mouth resonators for minimal flow restriction and the meanest sound around
    • Dyno-proven to outperform competitive resonator-type exhausts
    • Engineered and built to OEM standards to ensure proper fit
    • Constructed entirely from mandrel-bent 304 stainless steel
    • Features show-quality polished resonators and 3.5" double-wall tips
    • For 1999-2004 SVT Cobra models



    >>>GUARANTEED LOWEST PRICE<<<
    Prices No One Can Beat
    We'll beat any advertised price on listed Stainless Exhaust Systems and ship it Ground UPS FREE! * Continental U.S. Only

    Part # Year Application Price
    SLPM31006 99-04
    (Cobra only)
      SLP " LOUD MOUTH "
    • LOUD MOUTH Mufflers
    • Mandrel-bent 304 Stainless Steel Tubing
    • 3.5" double-wall T-304 tips with electromarked SLP logo
    • Lifetime Warranty
    $ 494.95
    SLPM31006A 99-04
    (Cobra only)
      SLP " LOUD MOUTH II"
    • LOUD MOUTH II Mufflers
    • Mandrel-bent 304 Stainless Steel Tubing
    • 3.5" double-wall T-304 tips with electromarked SLP logos
    • Lifetime Warranty
    $ 518.95
    SLPM31009 94-97
    (Cobra/GT)
      SLP " LOUD MOUTH "
    • LOUD MOUTH Mufflers
    • Mandrel-bent 304 Stainless Steel Tubing
    • 3.5" double-wall T-304 tips with electromarked SLP logo
    • Lifetime Warranty
    $ 470.95
    SLPM31009A 94-97
    (Cobra/GT)
      SLP " LOUD MOUTH II"
    • LOUD MOUTH II Mufflers
    • Mandrel-bent 304 Stainless Steel Tubing
    • 3.5" double-wall T-304 tips with electromarked SLP logos
    • Lifetime Warranty
    $ 494.96
    SLPM31008 94-97
    (Cobra/GT)
      SLP " LOUD MOUTH II"
    • PowerFlo
    • Mandrel-bent 304 Stainless Steel Tubing
    • 3.5" double-wall T-304 tips with electromarked SLP logos
    • Lifetime Warranty
    $ 539.96

    Click-On Price to Order




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