1320 Performance 06-11 Civic SI Tri-Y Race Header w/ high flow cat k20z3 for Sale

Price: $347

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1320 Performance 06-11 Honda civic SI HEADER

  • High quality 304 Stainless Steel
  • High Flow 2.5" merge collector with test pipes and high flow cat
  • Tri-Y 4-2-1 with step collector design for best HP gain and ground clearance
  • 2-piece design for easy installation
  • will fit with Air Conditioning and Power Steering no modification required bolt on deal.
  • 10+ wheel horsepower on a stock k20z3 engine.
  • FREE HEADER GASKET AND DONUT GASKET NUTS AND WASHER.
  • 90-degree Defouler is included to take care the CEL issue with a test pipe.
  • 1 Year Limited warranty


1320 Performance 8th Gen Civic SI Header was designed to increase performance and sound of the K20Z3 engine. The header was developed using a proven 4-2-1 Tri-Y design and our step collector design and smooth transitions that deliver power gains almost everywhere in the power band, not just the higher rpm range. Fitment past the subframe and sway bar is perfect with extra clearance available for engine movement.We start with 44mm primaries that smoothly step into 50mm secondaries and finish with a 2.5-inch exit. Our header is mandrel bent and made from high quality 304 stainless steel tubing and is fully tig welded. We also use a slightly thicker gauge tubing than other manufacturers to make sure our product last and we back it up with our 1-year warranty against manufacturer defects. Our header directly replaces the OEM 2 piece design and eliminates the catalytic converter so we included a short 2.5" test pipe with defouler for the secondary O2 sensor this header also come with high flow cat so you can switch between the test pipe for track days and high flow cat for daily. (please check our other sales we also carry the same header without the high flow cat option at more affordable price)

Installation note: It is highly recommended to use a Hasport rear engine mount especially with higher mileage vehicles. The stock mount does not offer the support required to keep the engine movement to a minimum.



*** OFF-ROAD USE ONLY*** NOT SMOG LEGAL CAN NOT BE USED ON EMISSION CONTROLLED VEHICLE

SHIPPING: All orders will be ship out in 1 business day, including a tracking number.

SHIPPING SERVICE FOR P.O BOX SHIPMENT AND ANY AFO AND APO ADDRESS additional $40

SHIPPING SERVICE FOR ALASKA HAWAII, PR AND GUAM AND OTHER U.S. VIRGIN ISLANDS additional $45

WARRANTY: Unless otherwise stated in the listing, we will guarantee the product from free of defect for one full year (12 months) from the date of purchase. The warranty does not cover abuse or damages caused by road hazard or improper installation. Any modification to the product will void the warranty. When a warranty claim occurs, we will choose to repair, exchange or refund the payment at our discretion. Used items are generally sold in AS-IS condition with no warranty.RETURN: In the case of returning or exchanging the product, you must email us first to obtain a returned merchandise authorization (RMA) number. Customer will be responsible for paying all shipping & associated costs for sending the product back to us. The shipping that we initially charge is not refundable. All returns are subject to a 25% restocking fee and the returned product must be in unused, original condition. We will not take any returns or exchanges after 2 weeks from the date of sale; reserve the right to reject any return or exchanges.
remove the stock header and cat and undo the o2 sensor. loosen up the factory subframe bolt for easier installation. remove a bracket on rack n pinion to slide the header onto the engine.

Due to CA CARB regulation, this item can not be installed on street legal vehicle1975 ornewerthat to be used on a publichighway. For those that purchase this item and ship to CA address, you agree and certify that this item you purchased is for vehicle 1975 or older or vehicle that is smog exempt and may never be used on a public highway.



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