well i'm getting ready to put my turbo kit on, but i'm kinda stuck on something.... the downpipe! i understand i have to custom build my downpipe, due to that good ol' crossmamber!!! But what about my O2??? i have a custom tubular style manifold that does not have an O2 port.... there in lays my question, Were would i put it at? Do i just mount a spot on my downpipe? what did you all do? any help would be great. thanks!

 

find a spot and weld it, close to the turbo is better for those old *** obd0 no heated sensors my bungs (lol) are like 6" away from the turbo. Yoiu also might wanna weld in a second bung for wideband tuning ability

 

And just the clarify, boosted chemist meant on the downpipe.