I recommended upgrade Perodua Alza are Denso Iridium Spark Plug (IXU22) - Perodua recommended this too. Save cost in the long run. Normal spark plug (lifespan 20,000km)- RM52 (Perodua SC), Denso Iridium Spark Plug (lifespan 100,000km)- RM180 (Perodua SC).

Secondly, Coil spring buffer. To prevent rear spring reach bottom on full load, and if you think your suspension is too soft, it is the cheapest way to make it feel firmer. Thirdly, front strut bar. Cheapest and most effective improve handling.

Toyota Vios -Good fuel consumption despite jam in KL -Great equipment for J spec M -Value for money -Suspension soft and comfortable -NVH very bad. especially the roof. the sound like milo tin being hit by a stick when raining.

-Still using ancient engine -Cheap plastics everywhere especially the manual gear knob glove. Even proton saga gave leather material. -A lot of body roll. I wont feel safe if im driving a auto transmission.

Perodua Bezza Upgrade or Modified review. After change 5j rim into 5.5j rim and 65 into 60 height of the tyres. The car lowered a lot. Original setting also consider low. Now even lower, very stable when cornering and high speed.

Bad thing is when full passengers and drive through road hump must very slow. If not the tyre will touch the car body, maybe the Bezza suspension also very soft. Tyre pressure suppose 220 kpa buy i just put 210 kpa, it already a bit bumpy. If put 220 kpa become harder, maybe no this issue. Anyway i always drive alone.