Two 044 pumps seems massively overkill to me for a T4 .

I have the same turbo as you and run just two 941 (2wd) pumps, but if that is what is recommended by Alan, then he obviously has his reasons. A single 941 is good for 400bhp and a single 044 just about 500bhp, so two of these seems completely unwarranted at your power level. I'll have to have a chat with Alan and find out his reasoning next time we speak .