The team used the Easter break between China and the weekend's event at Istanbul Park to work on the system aboard the otherwise-dominant RB7 car.
"I think big compliments for the team," said runaway championship leader Sebastian Vettel after winning in Turkey.
"For us, the drivers, maybe three weeks is some time off, but for the team, they are working hard. (In Turkey) I had no problems from start to finish," said the German.
Teammate Mark Webber said his KERS unit suffered some glitches towards the end of the race when he fought with Fernando Alonso.
"But the KERS was very good today," he confirmed, "the guys have done a great job."