aFe 409 Stainless Steel Shorty Headers for the 2011 and up 3.7L Mustang offer maximum power gains, maintains a perfect fit, and makes installation a snap. Thshorty headers produced gains of up to +14 HP and +15 lbs. x Ft. TQ., as measured on aFe's in-house dyno! Constructed of 1-5/8 IN mandrel-bent 409 stainless steel tubing, this kit is built for maximum strength and durability and come with factory style laser cut machined mild steel flanges for a secure leak-free seal. Plus, they are 100% MIG-Welded for race-proven strength and durability. 3-to-1 Mitered Merge collectors reduce turbulence and enhance exhaust velocity, giving you increased horsepower, torque and improved throttle response. Utilizing state-of-the-art computer-aided design technology, these headers are designed for custom, high tolerance factory fitment and includes gaskets and lower outlet hardware for a direct bolt-on system. No cutting or modifications required for a hassle-free installation.
Application Guide: 2011, 2012, 2013, 2014, 2015, 2016, 2017 Ford Mustang 3.7L V6
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