Skunk2's 4-2-1 Alpha Series header is manufactured of T-304 stainless steel, features equal-length, sequentially paired primaries and is compatible with the 2006-2011 Civic Si.

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Product Review

Skunk2's 4-2-1 Alpha Series header is manufactured of T-304 stainless steel, features equal-length, sequentially paired primaries and is compatible with the 2006-2011 Civic Si.

  • Complement with a genuine Skunk2 MegaPower Exhaust system for maximum exhaust flow
  • Not compatible with K24 bottom-end swap.Includes adapter flange, gasket, and mounting bracket
  • Race application; eliminates catalytic converter

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