[RC3]

Welcome! e_magnum.

jxnco and mlai pretty much said it all. They are gurus also.

Advanshop is the authorized dealer for Forgestar in HK. Zillion can get it also. You can shop and compare. Buying from US vendors is another possibility. Most likely cheaper even with shipping. Or get the Morr if you can spend a few more bucks. It's not available when I got my car. Otherwise I would have gotten it.

Tires factor a great deal for ride comfort. My Advan sport is much bumpier than jxnco's PS2 with the same H&R springs. So I suggest you get the softer tires like Michelin.

Springs probably H&R is the cheapest and best value for money with decent drop. If you have extra budget I recommend you to go for coilovers like KWV3. BTW, If you don't mind having used springs I can sell you mine really cheap as I always wanted to upgrade to KWV3. I have around 4,000km and 7 or 8 months with the springs. Let me know.