Both of mine are really noisy and have been from day 1. What is slightly frustrating is that my steering kit was fitted at the factory whilst they were waiting for the Brooklands exhausts to be signed off, but they didn't fit the other new components. Are you having the chassis mod done? I've been told that the cooling kit is not very well finished so I may not bother with that but I did have 1 cylinder down in Chiswick the other day for a short while.