Looking at fitting this fuel system, will the UTEC have any problems running such large injectors?

 

those 800cc aps injectors uses are more like 680cc injectors with a higher fuel pressure. i havent seen too many members with the extreme fuel kit on their rides yet. if you are using the utec, i would stick with the AAM or CJM single pump setup with some rc 650's or 750's. now if you went fcon vpro, you could run some 1000cc injectors.(from what i've read)

 

So the answer to your question is yes, the utec should be able to control the aps injectors in the extreme kit.