PLM K-series Tri-Y Header - 06-11 Civic Si

PLM K-series Tri-Y Header - 06-11 Civic Si

PLM MFG K-series 06-11 Civic Si Tri-Y header features a true step-up exhaust header design. The Tri-Y header delivers low to mid end power while utilizing a four piece design which maximizes the engine compartment space. This exhaust manifold is ideal for all forms of competition; Autocross, drag racing and road racing.

Includes test pipe, gaskets, and all necessary hardware.


  • Short tube Tri-Y design
  • True 2.5" collector
  • Made of 18 gauge 304 Stainless steel
  • One year limited warranty
  • Machined CNC-ed manifold flange
  • .38" Flange (38" thick)
  • Five piece design
  • Test pipe included

Some assembly required

Vehicle application: 06-11 Civic Si

This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws.

PLM K-series Tri-Y Header - 06-11 Civic Si

Regular price Sale $450.00
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Free standard shipping applies to this item within the continental United States. Orders shipped to Alaska, Hawaii, Virgin Islands, Canada, Puerto Rico, Guam, and PO/APO/FPO boxes are subject to additional shipping charges.
Ships: 1-5 business days
This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.
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