yea this is very true, i have the luck to have a shop 5min from my home that provides the cleaning servc and at one point when i purchased my previous set of used 1000cc inj, we were having issues cold starting the motor on 93oct fuel.

My last resort was getting them cleaned and before cleaning and what not, the inj were flowing @ only 880+cc's.
After the service they were dead on!!

Nice to have a company like yall on board.