I read things here that lead me to believe that with a monor mod here or there I can increase performance of my 04 MC. Can it be true?

Give me the guush!

 

check this section of NAM https://www.northamericanmotoring.co...play.php?f=138 that should point you in the right direction

 

Definitely take a look at the other forum on modding the MC.

For minor mods don't forget that the driver's skill level is the biggest factor in harnessing the best out of any MINI.

So if you want instant success try going to a Driving school with your MINI.
There is quite a bit of performance built into every stock MC or MCS.

The most common mods would be:
Cold air intake
MTH or similar ECU upgrade
Cat back exhaust
lighter rims and non runflat tires.