I was curious about the difference between the various maps so I charted a comparison of those using the Pro Design intake kit with K&N filter and airbox lid removed. If the average fuel richness were an indication of flow, the exhaust setups would rank as shown in the following list. This isn't necessarily an indication of performance and the systems rank differently if ranked at a specific RPM range.
Map M416-0xx -- Exhaust -- Mean
1) Map 48 Yoshimura RS7 full exhaust (spark arrestor removed) 10.64564565
2) Map 19 Bub Moto C4 slip-on exhaust 10.30930931
3) Map 24 Pro Circuit T4 Full exhaust 10.02102102
4) Map 46 LTE full exhaust 10.003003
5) Map 47 LRD Pro 4r full exhaust, Pro Design intake kit 9.834834835
6) Map 27 HMF Full exhaust (race baffle) 9.423423423
7) Map 38 Jardine slip-on exhaust 9.366366366
8) Map 51 CT Racing full exhaust 8.51951952
9) Map 29 Jardine Full exhaust 8.195195195
10) Map 41 Two Brothers slip-on 8.078078078
11) Map 03 Stock exhaust, muffler insert removed, stock air filter, airbox lid removed 7.924924925
12) Map 56 Pro Armour Pro 4S full exhaust 7.813813814
13) Map 02 Stock exhaust, stock air filter, airbox lid removed 4.666666667
14) Map 01 Stock 3.777777778