The blue filter is usually what they use, that's the only option if you service at SC I guess?



And this is what I use, it lasts longer and filter better but slight more expensive:-

thanks for the recommendation , and yes, was talking with another City owner today , and it seems the sound proofing for the City is real bad

Here is what we would recommend, start with the floor , we used STP for the most basic package Rm 850 for the whole floor , but if we can get 3 , might be able to get it done for Rm 7xx?

Or boot, basic STP at Rm 380 , FOC one layer of Thermo Sponge, those who liked our FB page should know what we mean

As for the tyre , we are not doing it at the moment, as it is really very very very very subjective, regardless of which famous sp shop u go to, tyre , trust me, might regret paying so much for something so little. Unless, you guys send one white mouse to get it done first

Unlike the floor, same material used on any car, significant difference is there, as for tyre noise, some car spent 1.2k and doesn't reduce any noise, so same method of application might work on one car but not the other...

* there fore we always ask our customer to get a quieter tyre first , we do not wan't customer to regret spending too much on tyre sound proof, we want customer to get out from our place with a smile and positive feedback , and recommending their friends.

And of course Silent Coat , we do have it too 
Like our page, and keep updated with our sound proof promotion, but the boot STP package for only Rm 380 with FOC one layer of in house thermo sponge, is something you should never missed