Thanks for the input guys!

Very interesting to know that a bone, well maintained Civic SiR can still command such a price even if its more than 10 years old.

Goes to show that Stock cars get higher resale value and overall satisfaction.

I have decided to keep my Jazz as stock due to your advises

My Jazz has currently only the OEM Wing Spoiler, OEM Leatherette Seat covers and Tilting Plates holder. I'll stop there and keep it simple and clean.

I also hope the supply disruption of Thailand in 2011 would also make the resale value high come 10 years down the road (not sure about this) haha