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The aFe Twisted Steel shorty header for 2011–2017 Ford Mustang V6 3.7L is a direct-fit short-tube header constructed from 1-5/8-inch mandrel-bent 409 stainless steel tubing. It uses 3-to-1 mitered merge collectors to reduce turbulence and boost exhaust velocity, with laser-cut machined flanges and 100% MIG welds for a durable, leak-free seal. Includes gaskets and lower outlet hardware; dyno-tested gains up to +14 HP and +15 lb-ft.
aFe Twisted Steel Shorty Header 11-17 Ford Mustang V6-3.7L
