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American Racing 1.625 inch x 2.5 inch Headers with Race X-Pipe and H Pipe Ford Mustang GT 3 Valve 05-09


American Racing Headers

Model #MT3-05158212LSHNC

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This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

American Racing Headers is a great example of what culminates when highly skilled fabricators, with a complete understanding of motorsports and the science behind the parts they create, come together to take on a new world of high performance.

Taking the Bull by the Horns approach, American Racing Headers was formed to prove that superior quality and outstanding performance can and will be the keys to success. A staff with 40 plus years of combined high performance exhaust fabrication experience see to it that only the finest components and craftsmanship go into every header system.

In 2005 Ford changed the future of muscle cars by bringing back the classic look of the 1960's mustang. In a modern day platform what they put under the hood was the potent and durable 3 valve engine. Plagued by highly restricted exhaust manifolds, the 3 valve benefits greatly by breathing through an awesome set of American Racing Headers.

Manufactured entirely using U.S. made 304 stainless steel, with 100% leak free one piece long tube design. Your choice of 1.75 inch or 1.875 inch primaries with 2.5 inch or 3 inch collectors. Merge collectors with scavenger spikes standard. 3/8 inch thick flanges with tig welded and hand ported inlets. With or without ARH 200 cell 49 State Legal Severe Duty Cats.


  • Stainless Steel Construction
  • 1.625 inch x 2.5 inch Headers
  • 3 inch X Pipe
  • H Pipe
  • 3/8 inch thick laser cut flanges
  • Tig welded hand ported inlets
  • Leak free merge collectors with scavenger spikes
  • Limited Lifetime Warranty
  • Ford Mustang GT 3 Valve 2005-2009
  • Pictures used for marketing purposes only, actual product may vary.

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Vehicle Engine Notes
Ford Mustang GT

Items can be returned within 60 days of receipt. If items were shipped in error or damaged in transit, American Racing Headers and Exhaust will pay for all return charges, and waive any restocking fees. However, if American Racing Headers and Exhaust shipped your order per your specifications but you would still like to return items, return shipping charges are the customer's responsibility, and a 20% re-stocking fee will apply. No refunds will be made until returns pass inspection. If the ARH system has been purchased through a dealer, please contact that dealer for their returns policy. If there are any problems during installation please contact ARH immediately, no modifications should be done without consulting an ARH representative. Any unauthorized modifications will void the warranty. Please contact us for a Return Authorization Number (RMA) and shipping instructions. For more information on our limited warranty please call 631-608-1986.

Since sound is subjective, we do not warranty for sound. Please do not return your American Racing Headers© product if you do not like the sound level. There are several ways to adjust the sound level. Please call for more information if needed.

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