Well, I'm the guy that'll make them here. Basically, I do alot of fab in the Honda world, but I'd like to start working into other cars that have a following where custom fab stuff is needed.
I spoke with paNX2K&SE-R when welding up his charge pipes and he stated there may be a need for some of you guys. I've done alot of custom manifolds, charge pipes, dumps, downpipes, breather setups, traction bar setups...just various fab stuff.
I'll make whatever you guys want as long as it's worth my time. I dont' have a chinese sweat shop here, I do this all independently, so as long as it works well for me I'll do it. I certainly can find a balance between whats affordable versus what you all want to pay.
The divorced setups are pretty straightforward, I just need a mockup car basically. Once I can get that sorted out, then I can fab my jigs and make as many of these as people want. Like paNX2K&SE-R stated, I can do the full downpipe with a divorced but recirculated dump, the divorced O2 housing only with open dump, or whatever else.
I can offer these in stainless or mild steel at a lesser cost, so those options would be available. If I really know what people want and are willing to truly buy, then I'd get started upon securing a mockup car.
Here's some of my Honda fab just for reference to my work so ya'll know I'm worthy of making some things:
Mani made for, and on my ls/vtec Delsol with GT3071R
Collector on that mani
16g stainless charge pipe welds
Some other various mani's I've made