TW/FS 'Topmount' adapters for OEM cast manifolds (HF/Z6/DX)
 

I have the insane ability to make TOP MOUNT adapters that bolt to a z6 (4-2-turbo), dx (4-turbo), and HF (4-turbo) manifolds. I've only made ones that fit AC and 3" DP on an EG, and they will fit PS if you run no filter (I throw PS out, I'm no -----!) - but only a t3 works w/AC if you keep stock lines.

I have an EG and EF that I use for mockup/dimensions, as well as a blown z6 on a stand. I can also MIG and TIG the ---- together, so I can do stuff from Homo Depot cast elbows to stainless sch10 butt-weld elbows. My EG has AC, so I'd have just base it off of dimensions & the mockup motor if I did one to fit a big t3/t04 turbo

I was thinking $100 for the 'basic' uppipe and downpipe, which would be ganster-cast elbows and 2.25" DP. 3" DP can be done for $20 more, smooth SS elbows for $20 more, $20 more for external WG for AC use, so under $180 for a pimp manifold you can use with your tubular 'CDM' 4-2-1 header, stock radiator fan, and stock catilytic converter! It would require an External WG for AC or a full-width crx radiator, so I guess I could do custom ---- depending on your needs. Yes, I can give you what YOU want, ------! I could go cheaper, but I have a nasty heroin and tittie bar addictions to feed.