DESCRIPTION Performance tuned aftermarket headers can provide much more than just sending exhaust to the back. Apart from having separate tubes for each cylinder to eliminate backpressure due to interference between exhaust pulses, a properly designed header can actually increase engine efficiency, helping to draw more air/fuel mixture into the combustion chamber through a process known as exhaust scavenging. The item "Stainless Steel Headers for BMW E36 323 325 328 M3 2.5L 3.0L 3.2L RHD" is in sale since Friday, May 15, 2020. This item is in the category "eBay Motors\Parts & Accessories\Apparel & Merchandise\Car & Truck\Key Chains".The seller is "blackpanthermotorsports" and is located in Raleigh, North Carolina. This item can be shipped worldwide.