send back to cose using back original parts, expect longer waiting period and not able to claim for front...
if got lobang those magat workshop can gaodim all for u, they use 2nd hand part for u (front and back), and mark-up abit claiming from 3rd party insurance. some more can finish in a week.
but workmanship don't expect too much, only thing is u no need to spend a single cent.

change exhaust can get better FC? 

Might be absorber mounting.
Mine also four year, right front monuting koyak.

castrol engine oil has cause my friend's persona to do overhaul, not sure u believe or not. but it is true story..

your car comes with door visor?? if not do check window rubber seal

recently more n more stupid fxxking noises coming out from no where, which most noticeable part is driver door parts, not sure it's the door handle, the power window switch part, or lower parts which produce irritating sound (i even punch or hit hard on it, though the sound still there ) 2nd noises still coming out from the middle aircond part, still annoying and irritating like always, let's put ngek ngek sound aside.  This is a car that rarely drive which is now 14k for 1 year and a half,  when my mileage around 13k, i send for servicing (changing engine oils and filter only), the foreman jack up my car and they found both petrol and engine oil leaking, I was like, wow damn, why am I so lucky? a car that didn't even drive to any where will have petrol and engine oil leaking     even though both leaking problems solved, but this car is definitely disappointed me to the max, no more having faith on it la, going to sell it out

wow thx a lot bro, never thought of this one, will defintely try by tonight

poor guy + 1.. sama-sama persona sampai kong