Getz modification and makeover.

as per my intro post, i am planning to make up the getz that i got from my mom. this is the version that was sold in india about 2 years back and comes with a 1.3 litre engine.
 
first up on the list is to get a set of 14" wheels and nice rubber to go with it. next is the K&N conical filter and a nice custom exhaust. do you guys suggest any exhausts that might be good for my car?
 
also, has anyone tried re-mapping the ECM of this car? do let me know guys and thanks in advance.


Thumbnail Image

are there so few getz owners that want to get more out of their car? i am sure that there is somebody out there who would have tried something, come on some suggestions please....