Hi Stantheman, Brooklands #33 here!
Only had the engine warning light once, and it was clearly because I had filled up a bit too much, and the engine stuttered a bit. It all came good quickly, and I never made that mistake again.
On the specific Brooklands model issue (exhausts) have to say my 3rd gen ones are holding nicely. Then again, I'm roughly 4000 kms in, and just 1000 with these.
