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aFe 4
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aFe 4" Down-Pipe Back Aluminized Single Exhaust System (15.5-16) Duramax

aFe 4
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  • Constructed of 4" mandrel-bent aluminized steel tubing for maximum flow
  • A unique high quality OE style tapered flange is used for a complete 360 degree sealing surface
  • OE style bayonet hangers are used to maintain a stable pipe location
  • Includes a free flowing 12" muffler for maximum flow
  • Uses factory mounting locations providing stability and a hassle-free installation

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