This integrated O2 housing downpipe, or O2 eliminator as they are often referred to, has proven to add 16whp on a stock Evo 8/9 turbo, stock air intake Lancer Evolution at factory boost levels!
It is also important to note that these gains were realized on a car that had already upgraded the catback exhaust system and replaced the catalytic converter, arguably the biggest restriction from the factory, with a test pipe! Even larger gains are inevitable on applications with further modifications or increased boost levels!
Full 3" design reduces exhaust restrictions and is the only true 3" option available!
Made from 304 stainless steel for superior corrosion resistance and enhanced appearance.
Mandrel bent tubing throughout optimizes exhaust flow.
Stainless steel flex section reduces stress from engine movement increasing longevity.