JB bling bling!!
Personally I would rather do it locally than to send there and come back without a car for new year.
Acknowledged that there are many recommendations for JB workshops, but honestly Murphy's law is scary shit. Someone steals your car in SG, it will be found within mins/hours (or STOMPED if the theft goes viral). Someone steals your car in JB, be happy if still the driver and family can come back alive.
I would rather call up the site sponsors like Revol, Sonax, Posh Concepts. Money and depreciation are not everything in life. Cheers.