well i understand what your saying but on the same note ur r6 was just a r6...this is a special edition bike man...its not ur regular gsxr...so thats 1...second...why would putting 1000 brakes which are way better brakes lower value???...alot of people who race 600 suzuki the first thing day do is upgrade to 1000 supsension and brakes...and it is not cheap to upgrade all these parts....u cant compare the braking ability or suspension of a 600 to a 1000....so in my opinion and in most peoples opinion becuase i know alot of people with bikes this is a awesome upgrade...and if u talk among the suzuki people its very common...if u put a rb25 is a 240 does it lower value???....maybe in the market and dealer point of view...but for another enthusiast would this lower value???...hell no they know whats its worth...but thanks for ur 2 cents...dont really matter cuz ur not buying the bike...alex