boy from oz, not out of place at all. in fact, i for one very much appreciate your input-especially when you consider your perspective-you are one who has "been there and done that" with the headers.
couple of notes; these are prototypes-not finished product. i've already [last night at 11pm] emailed the builder with the concerns above; equal length [or as close as possible], proximity of header to brake lines & steering coupler [will be better with the ss as their radius is tighter] and ground clearance.
he explained that he also designed the header with the ability to pull the trans w/o removing the headers. i suggested that i felt we would trade that for more ground clearance & space between the header & brake lines/steer coupler.
i'm assuming most of us are running the stock lsx oil pan-which i know is the lowest point on the front end of my z.
so, this is the first stab at the left [driver side] header. we're learning and providing feedback for the builder so our headers will meet our goals; long tubes, [close to] equal length, spark plug & mounting bolt clearance, ability to install/remove headers w/o removing the engine, more power and ground clearance.
please, if you have suggestions/comments keep them factual with the premise of helping to improve the design for us all.