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American Racing Headers 1-3/4 in. Long Tube Headers w/ Catted X-Pipe (99-04 Cobra, Mach 1)

Item 404111
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Market Price $2,063.99 You Save 12% ($238.04)
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$1,825.95 (pair)

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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Specs & Installation


      • Long Tube Headers
      • 1-3/4" Primaries
      • 3" Catted X-Pipe
      • 304 Stainless Steel Construction
      • 3/8" Laser-Cut Flanges
      • 1-Piece Design
      • Tig Welded Hand-Ported Inlets
      • Leak Free Merge Collectors
      • Welded Scavenger Spikes
      • Optimized Tube Routing
      • American Made
      • No Tuning Required
      • Off-Road Use Only
      • Expert Installation
      • Fits 1999-2004 Ford Mustangs, Mach 1 and Cobra Models


      Second to None. These American Racing Headers 1-3/4 in. Long Tube Headers w/ Catted X-Pipe - are made dependable and reliably in the USA and designed to increase your Cobra or Mach 1's horsepower and torque. With a fit and finish that's second to none, these headers are the ultimate upgrade for quality and performance.

      Aggressive Sound. These headers will also bump your exhaust sound a few decibels for an aggressive exhaust sound even you hit the pedal.

      Catalytic Converters. The X-pipe comes equipped with ultra high-flow 200 cell metallic substrate catalytic converters for maximum exhaust flow.

      100% Stainless Steel. This pair of American made long tube headers feature 1-3/4" primaries and a high flow 3" catted X-pipe for maximum flow, horsepower, and torque! They feature 3/8" flanges that have tig-welded and hand ported inlets and they're made entirely of 304 stainless steel with a 1-piece design that provides 100% leak-free performance.

      No Tuning Required. No tuning or reprogramming is required to reap the benefits of these headers.

      Off-Road Only. These headers are not CARB certified and are intended for off-road use only.

      Installation. Expert or professional installation is recommended. The process generally takes around 6 hours to complete.

      Application. The American Racing Headers 1-3/4 in. Long Tube Headers w/ Catted X-Pipe are designed to fit 1999-2004 Ford Mustang, Mach 1 Cobras.

      Fitment: 1999 2000 2001 2003 2004 Details

      MPN# MT4-99134300LSWC

      CA Residents: WARNING: Cancer and Reproductive Harm -

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Headers
      • (1) X-Pipe

      Will It Fit My Mustang

      • Cobra - 99, 00, 01, 03, 04
      • Mach 1 - 03, 04

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