RPM Outlet - We Take The Guesswork Out Of Performance Parts!
  DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR YOUR SHELBY GT500
Click-Here for more info on  the new MOTOBLUE High-Boost Drive KitSTRATEGY

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 Ford Shelby GT500.

We have invested many hours evaluating and refining each of the Shelby GT500 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.




BASSANI Xhaust Systems TRUE Headers x-pipes / Axle-Back Kits
(complete 3-inch system listed below)

BASSANI Xhaust introduces uncompromised power and performance for the 07-08 Shelby GT500. The Mustang takes its design language from the concept car that stole hearts along the auto show circuit and signaled that America’s only remaining muscle car would be introduced for 07-08 Shelby GT500 with even more attitude. BASSANI Xhaust designed a product that makes the Mustang more striking than anything else on the market.



Bassani 1-7/8 Stepped TRUE Equal length Long-Tube Headers
(complete 3-inch system listed below)

RPM Outlet is proud to introduce a new and exciting product from Bassani Xhaust, their newly designed, precision-engineered 1-7/8 Stepped TRUE Equal length Long-Tube Headers .

Bassani's 1-7/8 Stepped TRUE Equal length Long-Tube Headers feature mandrel bent, 14 gauge stainless steel primary tubes, the exclusive “Extractor Collector” and gasket less ball and socket connectors. Every 1-7/8 Stepped TRUE Equal length Long-Tube Headers application comes complete with premium gaskets, nuts, bolts, hardware and detailed instructions.


Bassani porducts are always in stock

    Bassani Headers Feature:

  • Mandrel bent 14 gauge stainless steel primary tubes.

  • Exclusive 3-inch “Extractor Collector”.

  • Adds up to 30 horsepower.

  • 1-3/4 to 1-7/8 stepped primary tube.

  • Complete with premium gaskets, nuts, bolts, hardware and detailed instructions.

RPM OUTLET has everything you need in one package including “TRUE Equal-Length” headers, X-Pipes™ Brand Crossover Pipes (with or without catalytic converters) and a bolt-on 3-inch Aft-Cat™ system including all necessary mounting hardware and detailed instructions. These new products are precision-designed for the 07 Mustang Shelby GT500.
  Bassani 1-3/4 to 1-7/8 stepped primary tube headers
Part # Year Engine Application Price
 BXX-S5407R 2007 5.4L
    Bassani Long-Tube Headers(304- stainless steel)
  • Stainless steel TRUE Equal-Length Long-tube headers
  • Designed for 5.4L 4V GT500 Shelby Mustang
$1460.95

Click-On Price to Order





BASSANI Xhaust Systems 3-inch Aft-Cat™ (with x-pipe)
complete 3-inch cat-back system

Bassani porducts are always in stock
  Bassani 3-inch Aft-Cat™ Exhaust System
Part # Application Price
 BXX-5407RS
    Bassani 3-inch Aft-Cat™ (304- stainless steel)
  • Stainless steel TRUE 3-inch Bolt-on X-Pipe™
  • Bolt-on 3-inch mandrel bent over axle pipes
  • Bolt-on 3-inch Race Series Mufflers w/4-inch tips Simple Bolt-on (no welding)
$799.99
 BXX-5407R2
    Bassani Long-Tube Mid-Pipes off-road pipes (304- stainless steel)
  • Stainless steel 3-inch Long-Tube "off-road" Mid-Pipes
  • Designed for use with Long-tube header kits
  • Designed for 5.4L 4V GT500 Shelby Mustang
$149.99
 BXX-5407R3
    Bassani Long-Tube Mid-Pipes with cerimac high flow cats (304- stainless steel)
  • Stainless steel 3-inch Long-Tube Mid-Pipes
  • Designed for use with Long-tube header kits
  • Designed for 5.4L 4V GT500 Shelby Mustang
$399.99

Click-On Price to Order





BASSANI T-304/T-409 Direct-fit Muffler Assembly

    BASSANI has everything you need . . .

    Bassani stainless steel bolt-on Aft-Cat™ exhaust systems for the new GT are designed with the latest technology to provide the highest level of performance. This stainless steel system was engineered exclusively for the new 07-08 Shelby GT500 with one thing in mind: performance. All stainless steel piping mandrel bent for superior exhaust gas flow, and is key to the system’s performance. Both mufflers and piping are fabricated from stainless steel for corrosion resistance. This is a simple bolt-on that requires no welding or special tools.

  BASSANI T-304/T-409 Direct-fit Muffler Assembly
Part # Model Price
BXX-46055 BASSANI STAINLESS STEEL XHAUST

  • T-304 Direct-fit Muffler Assembly
  • 4" slash-cut stainless steel tips
  • Simple Bolt-on (no welding)
  • $570.99
    MBX-46055 BX PERFORMANCE by Bassani Xhaust

  • T-409 Direct-fit Muffler Assembly
  • 4" slash-cut stainless steel tips
  • Simple Bolt-on (no welding)
  • $ 469.99
      Pypes #PYP-HFM-60 Stainless Hardware Kit
    • 304 Stainless Exhaust Hangers, clamps
    • Nuts Bolts, detailed install instructions
    $ 49.99
      BASSANI RACE Series Muffler Assembly
    Part # Model Price
    BXX-46055R BASSANI STAINLESS RACE SERIES

  • T-304 Direct-fit Muffler Assembly
  • 4" slash-cut stainless steel tips
  • Simple Bolt-on (no welding)
  • $449.99
      Pypes #PYP-HFM-60 Stainless Hardware Kit
    • 304 Stainless Exhaust Hangers, clamps
    • Nuts Bolts, detailed install instructions
    $ 49.99

    Click-On Price to Order

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

    * Note : 07½ models requires #PYP-HFM-60 bolt-on installation kit.






    RPM Outlet is proud to announce the introduction of BX PERFORMANCE by Bassani Xhaust.

    This is a new line of "composite" construction Cat-Back Exhaust Systems and X-Pipe™ for 05-07 MUSTANG GT and the 07-08 Shelby GT500. Don't compromise performance. BASSANI BX PERFORMANCE Line now offers the same unique precision design, superior performance and excellence at a more affordable price.

    These quality products are a fantastic value when compared to other ordinary aluminized systems. All BX PERFORMANCE systems feature aluminized steel pipes and precision-designed mufflers with durable (stainless steel pipe) internal construction housed in a 16 gauge aluminized steel case. For built-in toughness and longer life, BX PERFORMANCE features stainless steel end caps and precision stainless steel welds.

    Unlike the competition, BX PERFORMANCE systems include high-grade premium hardware, gasket less ball and socket connectors and polished stainless steel tips. You've seen the rest, now buy the best at an affordable price!


      BASSANI BX Series bolt-on Direct-fit Muffler Assembly
    Part # Model Application Price
    MBX-46055 Shelby GT500
    2007
      BX PERFORMANCE by Bassani Xhaust
    • Mustang GT T-409 Direct-fit Muffler Assembly
    • 4" slash-cut polished stainless steel tips
    • Simple Bolt-on (no welding)
    $ 469.99
      Pypes #PYP-HFM-60 Stainless Hardware Kit
    • 304 Stainless Exhaust Hangers, clamps
    • Nuts Bolts, detailed install instructions
    $ 49.99

    Click-On Price to Order

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

    * Note : 07½ models requires #PYP-HFM-60 bolt-on installation kit.




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