im going to be rewiring my 1.8 xr2i over the cristmas holidays from work and my car is currently using a 105bhp ecu can i change this for a 130bhp ecu without having any problems i can fit a 2.0 maf for now but i will be keeping my standard cams in there for now or will it cause problems????

i will be putting a 4-2-1 on next month aswell with a full stainless system