The Gunners host Bayern Munich in the Round of 16 first leg tomorrow night and the Polish gloveman is hoping they can manufacture a victory in a bid to take an advantage to the Allianz Arena in a fortnight's time.
"It would be very important," he told the club's official website.
"Ideally you would like to play the first leg away from home and then take the second leg to the Emirates, but we may get a decent advantage like AC Milan did against us last season.
"Hopefully we can take a lead to their place, because it will be very tough at the Allianz Arena.
"The Arsenal supporters are always fantastic, especially on Champions League nights. It is always a bit more exciting and if we can match the atmosphere with the performance then we will have a good chance of getting a result."