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Stainless Power 1-7/8 in. Long Tube Headers with High-Flow Cats and 3 in. X-Pipe for 2011-2014 Ford Mustang GT

$1,614.05 $1,699.00
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Stainless Power 1-7/8 in. Long Tube Headers with High-Flow Cats and 3 in. X-Pipe for 2011-2014 Ford Mustang GT
$1,614.05 $1,699.00
$1,614.05 $1,699.00

Fits 2011-2014 Ford Mustang GT.

This Stainless Power exhaust system (MPN: SM11HCATX) is engineered to replace restrictive factory manifolds and the mid-pipe with a high-performance, bolt-on solution. Constructed from TIG-welded 304 stainless steel, the kit features 1-7/8 inch primary tubes and 3/8 inch thick flanges for a robust seal at the cylinder head. The 3 inch diameter collectors utilize integrated merge spikes to optimize exhaust scavenging and flow velocity.

The included 3 inch catted lead pipes and X-pipe are designed to mate directly to the factory connection point, allowing for a straightforward installation that significantly improves exhaust scavenging over the stock H-pipe and catalytic converters.

  • Material: TIG-welded 304 stainless steel
  • Primary Tube Diameter: 1-7/8 in.
  • Collector Diameter: 3 in. (Slip-fit with merge spikes)
  • Flange Thickness: 3/8 in.
  • Includes high-flow catalytic converters and 3 in. X-pipe
  • Connection: Mates to factory connection point
  • Manufacturer Part Number: SM11HCATX
🔧 Fitment & Compatibility
Year Make Model Submodel
2011-2014 Ford Mustang GT

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