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Now with your choice of 1-3/4", 1-5/8" or 1-7/8" primaries, whatever power you're producing or type of driving you enjoy, we have what you need for your 2 Valve GT Mustang. The standard Long System configuration includes our 3" X-Pipe.

Attn. All ARH products are exclusively manufactured for racing purposes. Installing these products on any vehicle eliminates the legal use, in any capacity, on public roads/highways and may be subject to fines and/or criminal liability as per the Clean Air Act.


Product features on this system includes:

  • 100% Made in the USA - Never Outsourced
  • Made entirely of 304 stainless steel
  • 3/8" thick laser-cut flanges for a warp-free seal
  • Hand-ported TIG welded inlets
  • Optimized primary tube routing for superior fit and performance
  • Merge collectors with scavenger spikes
  • Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability

Mustang 2V 1999-2004 Long System

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