1. its better to go stock kung ayaw mu ng tagtag sa ride mo. engineered ang suspension natin ng mga taga nissan so might as well just let them be and not mess with it.
better the oem springs. I can't recommend any brands kasi stock lang rin yung akin so i guess nissan springs would be the best.
2. walang servo ang engine natin (kung super saloon ka) kung ex saloon naman efi na rin yan. so IACV_AAC Valve is generally easy to clean you can do-it-yourself if you want to clean it. May steps sa sentraclub.ph kung paano gawin iyon.

yung sa kadyot naman more or less mali lang yung timpla ng clutch saka gas.
3. yung sa rattling dashboard hinahanap ko rin yung ganyan ng sa akin tumutunog lang rin sya kapag nakabukas ang a/c feeling ko nasa evaporator box sya, sa cooling fan, or sa air recirculator. Baka may loose na, hindi ko pa gaano na inspect yung akin eh. Mainit kasi sobra. hehehe
hope it helped! Happy motoring!
