^ Only the last link really applies to a discussion of "BluePrinting" when used to refer to Auto Tuning.
The First two can apply to anything that is Manufacturered or Built.
But If you actually read the links posted earlier you'll see that BluePrinting (as you used it) is a term used in Auto Perfomance Tuning
and does NOT actually mean a Paper Blue Print per se.
Your Exact Words were:
This exhaust is blue printed for the vmax engine.
From the last link you provided:
Blueprinting an engine simply means to build it to some specification.
This could be a factory specification (for cars which must run “stock” engines), the specifications of someone’s racing engine or one of the ones listed in Peter Burgess’ “How to Power Tune MGB Four Cylinder Engines”. In other words, it is an engine built to some plan rather than one taken in with the directions, “see how much you need to clean up the cylinders and tell me what size pistons to order”. In its most basis sense, a blueprinted engine is any engine built to a plan. Ideally, this should be an integrated plan with all the factors of performance and use built in. You can build a fully balanced and blueprinted race engine, but it will be of little use as a daily driver. A more modest engine specification, such as .040” over pistons, crankshaft rod and main journals turned no more than .010” and a chrome bumper cam and duplex timing gear, is also a blueprinted engine, offering street driving capablility and, probably, meeting all emissions requirements (have not put the engine together yet, so do not know).
PS
I Hope you don't take this as a Personal Attack as that is NOT at all my intention.
I have absolutely nothing against you or any UFO Products.
I just like to see clear Accurate advertising for a product and I in no way see where "BluePrinting",
as used in the Auto Tuning World, can in any way apply to this exhuast System.
If that were the case that would mean that they were built within certain tolerances ( a few hundreds of an inch difference) of the VMax OEM Exhuast system.
But in reality they are Much Bigger in Diameter and Don't have the Collector Box that the OEM Exhaust has.