The F-duct normally improves straight-line speed but at Monza it is helping to improve cornering speed while the flatter, Monza-spec wing actually makes the car quicker on the straights.
Red Bull are running with a new 'double' diffuser in the Principality while championship leaders Brawn also have a series of modifications, including a new rear wing configuration, changes to the car's suspension and a reconfigured chassis to suit the tight, twisty track.
Alonso had started the race in third place but battled his way to eighth after stopping twice so mechanics could mend his car's faulty rear wing.
Their new rear wing and new floor should make the car go quicker, but they do not have the track time at a race weekend to go through the thousands of combinations of ride heights and hard or soft suspension settings, versus high or low wing levels.
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Red Bull have been accused of favouritism this season, most publicly at the British Grand Prix when a new front wing was taken off Mark Webber's car and given to Vettel before qualifying.
The 30-year-old's car was fitted with a new front wing, diffuser, engine cover and exhausts.
The fashion so far has been for a tightly-waisted rear to the car, to ensure effective airflow to the rear wing - with Ferrari's particularly narrow.
Glock, 26, said the new car looked "pretty strange" with its wide front wing and high rear wing.
The contact damaged Vautier's wing, and although Power seemed to escape major damage, his car stalled as he tried to pull away after the service stop.
It has the wing span of a commercial airplane but the weight of the average family car, making it vulnerable to bad weather.
The incident damaged the front of Massa's car, with the Brazilian needing to come in for a new front wing.
The team aren't giving an official line on his crash just yet but after a first look at the footage they say nothing broke on the car, which will be a relief after Timo Glock's front wing fell off in Jerez because of a problem with the mounting.
That extra attention to detail has already begun at the Ferrari factory as the team's engineers solved the problem with Alonso's faulty drag reduction system (DRS) -- an overtaking aid which increases the car's straight-line speed by flipping open the top flap of the rear wing -- the day after the Bahrain Grand Prix.
Ferrari will trial a modified rear wing in Singapore, an update that was planned before the team decided to switch focus to the 2012 car.
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Kovalainen was running with a new diffuser and front wing in Hungary and he was quick to make the most of the updates which gave Hamilton's car a performance gain of about 0.8 seconds a lap in Germany two weeks ago.
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