Perhaps this will help. I contacted AWE about using a MK7 exhaust on the MK7.5 as it's on sale. The MK7.5 is slightly different spacing measured from the left pair of tips to the to right, and each side has a wider spacing as well. The MK7.5 exhaust is only offered in 102mm in order to fill this wider gap, as opposed to the MK7 which was available in 90mm as well.