(4-1 Design) 4 tube merge into a 2" collector flange and the second piece expend the 2" collector to a 2.5 flange this is how the 4-1style header is designed and this is why it makes the power and torque. This header is designed for mild build 1.6-1.8L engines build include intake exhaust stage 1 cams, mild head work, ls/vtec.
11:1 compression and below. 304 Stainless Steel in 18 gauge thickness. High Flow 2.5 merge collector with. 4 to 1 tubing design. 2-piece design for easy installation.It will fit with Air Conditioning and Power Steering. 10+ wheel horsepower on a stock GSR with no electronic tuning. Fits: CARS BELOW WITH B SERIES SWAP.
If you have a EF or a DA, you must trim the front cross member for clearance OR use aftermarket traction bars. For obd2 cars 96+vehicle you will need a o2 sensor extended because the secondary cat has been removed.
Small modification required for example OEM Radiator fan need to be trimmed or replace with a aftermarket slim fan especially if you want to use the skid plate. If you keeping the ac on the car the bottom AC line hose with the metal bracket the bracket need to be removed and zie tie can be used to keep the hose closer to the radiator support to avoid touching the header. OFF-ROAD USE ONLY NOT SMOG LEGAL CAN NOT BE USED ON EMISSION CONTROLLED VEHICLE.
The item "1320 Performance B SERIES Randy Monroe Style 4-1 MEGAPHONE HEADER ONLY GSR SI LS" is in sale since Wednesday, June 20, 2018. 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, Australia, Mexico, Germany, Japan, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, 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, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay, Ukraine, Cayman islands, Russian federation.