The team's McLaren 650s GT3 race cars received a reduction in boost.
Victorious in TC, TCA and TCB in Pirelli World Challenge.
TC, TCA and TCB contested at CTMP.
Fuentes and Thompson win in GTA and GT Cup.
Double podium for the McLaren GT team.
O'Connell fourth, Pilgrim has shift issues
Mark Wilkins was second, while Andrew Aquilante was third.
Martin Fuentes scores second position in GT-A class.
It was a tale of mixed fortunes for Bryan Heitkotter and James Davison.
The caution-marred race became a game of survival, more than a sprint to the finish.
McLaren GT factory driver Kevin Estre finished 3rd in Round 4, the second race of the double header of the weekend.
Top-ten for Mike Hedlund highlights challenging pair of caution-filled races in St. Petersburg.
O'Connell finishes fifth, Pilgrim sixth
Veteran driver tops round 4 at St. Petersburg.
Improves two spots on Friday's finish.
Johnny O'Connell finishes fourth, Andy Pilgrim seventh.
More caution laps than green flag laps make for a disappointing race.
Weather hampered the second-day crowd, but not the competition