Fren, let me answer ur questions from a perspective of an 58-year old idiot, who has been suckered into what is called "good handling" suspension.
Titan installed the partial set-up on a saturday. I believe i am the 4th car that went that way. There has been 3 others after me, u the the 7th, i believe. Never mind the luck of numerology, but urs still has noise issues, big or small in magnitude, hidden or obvoius, after long or short journey, or even after a certain dimension in time.
A day after installation, old ears can still sense spooky noises from the rear. Younger ears of my son confirms them. Of course , night before, a short message was sent to Wai Loong, to warn him of an impending non-understanding, self-interested and uncooperative noobie is coming to his shop to ask the experts advice to resolve the "rumble". He replied my sms and wrote "OK" , i am old enough to understand young men are busy at night.
"Eh, i cannot hear any noise" was Wai Loong first response. It dawned on me that i will have a sticky issue. 40 years ago i did engineering at Technical College, many many moons ago before some here were born into this world. That tells me to not give pointers to experts that had done suspension for 13 years. Titan uninstalled my rear suspension system, worked on them for about 3 hours. At the end of it all i asked Richard, he managed to give the piston seal as the cause for the noise.
Yes, the noise abated when i was at their place, only to return noisy after i reach home, somewhere in the kampung caled Bandar Baru Bangi, Selangor.
Again as a noobie, not wanting to be labelled as "syiok sendiri". i seek the help of XCInspire, to understand my car, as compared to his, tho i know no two 2.0 cvts can be the same, let alone the different rubbers the we both run on.. That was done at TT, friday, an occasion that i attended the 3rd time after owning the car for 20 months.
No, the noises did not disappear. It is there all the time in its glory. Of course, XCInspire, like always, gave me his every chance, time , ears and minds to listen to my story. Thank You, XC!
8 days after the installation, i return to Titan. Again, night before the trip i messaged Wai Loong to tell him i still have the noises. In the spirit of working together, Wai Loong did not respond. Well, i cannot be "syiok sendiri" and , i cannot feel turned-off. I went to Titan knowing full well i cannot be jumping hi-n-lo in the house, to get things done.
Wai Loong, first thing, went for a round in the Industrial area and again both my rear suspension system was uninstalled for the day. At the end of another 3 hours, i can only ask Richard what was the cause. "We changed the pistons" he said, and throughout the whole duration, i never asked whether their pistons were made from Titanium. Or even to say that heat is directly proportional to pressure, as far as Fluid Mechanics is concerned, as an offer of a helping hand in working together.
I took the car round the Industrial area to test if the noises were actually gone, after Richard took a spin with the rear suspension system naked, uncovered with whatever paddings and carpetting Proton gave us. Richard said the noises were gone, and i agreed with him.
About 25 km later when i reach home, the ghostly noises reappeared, to this very day, more than one glorious week after my second reset or retune ( or whatever Queen's English word there ever is)
How can anybody expect me, in the spirit of working together, to talk to Titan on the theories of Spring Compression and Rebound, that polyurethane is better than rubber, if their absorber is deemed to be totally devoid of any imperfections after 3 sessions being installed, checked, tested, uninstalled and reinstalled??
u are the same age as my dad, yet u strive for these sort of experience..this I salute..