most could do it! but only a few will do a great job. if you want a custom made manifold you would make it in stainless equal lenght . then jet coat the manifold and turbine housing. this is the best way but also the most expensive costing about $1600 for single turbo or $2000 for twin turbo. to cut your flanges of and weld new ones on would cost about $300 that would be just supply. mick