Yes first of all get decent wastegate...
On my new 09 turbos with upgraded OEM hardware 8mm rod, the rattle is coming again little by little on soft acceleration.
I am evaluating all turbo upgrade possibilities, looking for better flow at redline without sacrifiing spool time and low rpm torque.
Could you post a link to Rob turbo upgrade?
It seems that Turbo Dynamics retain the same wastegate rod that get used... will it work?
And yes after the turbos we need the adequate flash to obtain the max of the combo:
turbo + DPs + methanol + FMIC
It will be a killer setup if a tuner can bring the optimized flash