1320 Performance 06-11 Honda civic SI HEADER. Direct bolt-on for all 06-11 Civic SI models include both 2-door coupe and 4-door sedan chassis. 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.
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. 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 auctions 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. 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 vehicle 1965 or. That to be used on a public highway. Not legal for sale for, or use on, pollution-controlled vehicles.
Legal only for racing vehicles which may never be used upon a highway. Not applicable or intended for street or highway use. This item is only to be used on. Purpose-built racecars like those used today in NASCAR.
Formula One, sprint cars, etc. Or nonroad vehicles (dirt bikes, ATVs, snowmobiles and boats) that are used exclusively for racing.
The item "1320 PERF FAB 06-11 CIVIC SI FA5 FG2 K20Z3 HEADER & HFC K20" is in sale since Friday, June 26, 2015. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers".The seller is "1320performancefreak" and is located in Elk Grove, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.