So hello first post on here i have a 06 msc with a couple mods as you would say and wondering what direction you would go for tunning.
mods include:
cold air intake.
full race exhaust no cat.
forged intercooler
550cc injectors
17% reduction pulley
2% crank pulley
stock coil pack upgraded wires
colder plugs
Alta intercooler boots
H2o intercooler misster
ac delete
power steering delete
50 shot dry nitrious express just incase

 

Wow! With those mods your MINI must have had a tune (I'm assuming you're not the original owner and that you didn't do the mods.). Otherwise, it wouldn't run at all using the factory ECU specs. Touch base with "adriancl" on this forum. He can provide the tuning help you need.