Sauber have already made attempts at rectifying their performance disadvantage this season but for Singapore we find that the team have once more turned their attention to the sidepod bodywork. This is the 3rd major iteration of their sidepods, with a change made in Barcelona that increased the size of the inlet to accommodate more cooling. The changes didn't stop there though with the bodywork size and shape adjusted, catering for the way in which the airflow moved dowstream, into the coke bottle region.
The new bodywork, retains the inlet size run since Barcelona but looks to trade off some of the cooling requirements with changes at the rear of the car. This comes off the back of Sauber taking a step the two other Ferrari powered teams took in Spa when they followed suit in Italy covering the exhausts primaries. The result of which is a retention of heat within the exhaust itself which increases the potential of the powerunit. (Image @ScarbsF1)
The adjustment of the lower outlets means the upper outlet has been increased dramatically in size (above, with the inset showing their Monza specification). The team have also re-introduced their monkey seat (Y100 winglet) which sits just above the exhaust, looking to increase the upwash effect in the region (assisting both the diffuser & rear wing). Furthermore the fins that run either side of the crash structure (in the Y100 region) are now two piece elements either side, making them much taller; which will of course change the flow characteristics/upwash in the cars centreline.