Few quotes from various threads on them.
DL700 "......map numbers will drop 25+% in the upper rpms changing from STOCK to this injector "
Team Rocket Factory, talking about the stock injectors "I have noticed a lot of older bikes on our dyno only make it to 75hp before they are close to max. brand new injector can go to 85hp The filters get plugged up and they start going to sh&(*"
DL700 "NO, this injector works in a stock tb as well as the larger tb's...
OEM style fit, no spacers needed for the fuel rail
drop in , tune and go! "