PLM 06-11 Civic Si Race Header w/ High Flow Catalytic Converter 8thcivic

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PLM 06-11 Civic Si Race Header w/ High Flow Catalytic Converter 8th Gen Civic

The first off the shelf header with a high-flow cat, from none other than plm. One of the most affordable, long standing header manufacturers for the past 15 years on the 8th gen civic. While still always ensuring good horsepower and best bang for the buck. 

You have a K24 or K20 in your 8th Gen Civic SI? This new design now fits both the k24 and k20 setups in your 8th gen. Now with bolt-on 200 cell high flow cat! PLM Private Label Mfg. K-Series 06 - 11 Civic Si K24 & K20 header features a true step-up exhaust header design.  This version 2 (V2) is an one-piece design for 100% leak free installation.

With Bolt-On High Flow Metallic Catalytic Converter. 


  • 2006 - 2011 Civic Si
  • FG FD FA Chassis
  • Direct fit with K24 engines
  • Direct fitment with K20 engines
  • 8th Gen Generation Honda Civic

Key Features:

  • Stainless steel construction
  • Metallic core 200 cell high flow catalytic converter
  • Direct bolt-on installation
  • One year warranty
  • Short tube Tri-Y header
  • True 2.5" collector
  • CNC machined manifold flange
  • 3/8" thick flanges
  • 18 gauge stainless steel
  • One piece design
  • Includes donut gasket & hardware
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1 Review

  • 5


    Posted by Bill Pham on Apr 15th 2024

    Amazing header and sounds great. Installed it without any issues and could definitely feel the difference in power compared to stock.

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