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Mustang 5.0L BOSS 2012-2014 Long System



The American Racing Headers Long System for the 2012 to 2014 5.0L Boss Mustang takes this car's amazing road course performance to another level. Our Long System provides substantial performance benefits and allows you to keep the Boss side pipes. Available in 1-3/4", 1-7/8" and 2" primaries. Expect 28 RWHP gains before tuning and great sound. 

Product features on ALL American Racing Headers systems include:

  • 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 complete with welded scavenger spikes
  • Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability