2004+brake calipers for a 2003 murcielago.

So I have a set of 2006 murcielago front calipers that I want to retro fit to my 2003. As you all know, the 2002-2003 murcielago coudnt stop if their lives depended on it. A simple upgrade seems to retro fit the brembo larger calipers from a 2004-2010 non cc to my vehicle but the mounting holes do not line up. One choice is to swap the knuckle out at a cost of around $1000 per side used give or take. My question is: Has anyone fit these to a 02-03 murci without the use of a newer knuckle? Can I use a piece of machined titanium or something really strong and thin to mount to the knuckle and then the caliper to that? Obviously it can't be very thick either because it will push the caliper to far from rotor. Thoughts?

All I've heard is they are not interchangeable and require different hubs. If there's room, you could make a mounting bracket out of aluminum to fit them. Depending on how thin the bracket is, titanium might be a good option over aluminum.

Have you considered moving to a more aggressive brake pad as an easy first step to see if it improves things sufficiently? I switched to Pagid autocross pads on my G due to the horrible stock brakes, also aftermarket rotors, great improvement, especially on the track. Been thinking about doing the same thing on my '03 Murci for the same reasons you have.