Wow. Very impressive work.
I'd bet that it is fine for a car that is only driven on the street. You might run into some issue for a car that sees track (road course) duty. The portion of the manifold that crosses below the transmission looks like a tight fit!
Originally Posted by EchoSixMike
"Engineering is the art of modelling materials we do not wholly understand, into shapes we cannot precisely analyze so as to withstand forces we cannot properly assess, in such a way that the public has no reason to suspect the extent of our ignorance."
- Dr. AR Dykes