I chose the theme "Humble" because the car has only basic modifications which is very low key in my opinion. The list of modifications are:

18x7.5 CSA wheels with Yokohama S Drive 225/40/18
Factory black leather interior
Sparco handbrake
Momo shoulder pads
35% Window Tint
Reverse parking sensor
Mazda hi spec alarm system
Lowered 35mm with Eibach Prokit
Whiteline front swaybar
Whitline rear swaybar
Whiteline Strutbrace
Remus exhaust
AEM Cold Air Intake
Hurricane extractors
Aura Xenon Hi/Lo
Kicker KQ9 Graphic equalizer
Alpine V12 Mono power amplifier
Alpine V12 4 channels power amplifier
Alpine Type R 6.5 front split speakers
Alpine Type R 2 way coaxials rear speakers
Alpine Type S subwoofer
Dynamatt for soundproof (front and rear doors only)
Stinger cables all around

Mazda3 SP23 with 18x7.5 CSA wheels and Yokohama S Drive 225/40/18, lowered with Eibach Prokit

Hurricane manifold
Whiteline Strutbrace & AEM CAI
Remus exhaust
Rear with Remus exhaust
Kicker 9 band equalizer with Razo gearknob
Alpine Type S Subwoofer
Factory black leather interior
Whiteline rear adjustable swaybar
Chrome door handles
Aura HID Hi/Lo
Alpine V12 Mono Power amplifier
Alpine V12 4 channels amplifier
Dynamatt & Stinger Cables