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.

Denso Iridium spark Plug RM 180. Tried before on my Alza can last at least 8 years. Moreover, very obvious increase horsepower.

If you want minor upgrade to increase the power of your car without risk damaging your car. You can try this. I rather change at Perodua Service center cause dont want to take risk, so many fake Denso product out there.

I have used Denso Iridium spark plug before and I was told that they can last 40k mileage. At 20k mileage, mechanic took out and checked and realized that the plugs need to be replaced. Went back to copper and partly also due to the reason that I do not like the idea of using the plugs too long.

I was on voltronic plugs before that. Supposed to last 80k or 100k. I used them till 75k plus before replacement.

Toyota Vellfire Stage 1. The Advantage Of Using Ultra Safety Bar. Reduce body roll up to 40%. Improve your car handling & stability. Reduce chassis flex.

Improve braking performance. Improve your safety & comfort. Reduce noise. This series is included a Front Strut Bar and a Rear Anti Roll Bar. This combination is targeted for the normal road user. Installed Stage 1 vehicle safety bar make your car solid and stable.

New Mazda CX-5 2.0 installed Ultra Racing Safety bar. Stage 1 package , front strut bar and rear anti roll bar.

ULTRA Racing Safety BAR Skudai Jb.

Hyundai Accent 2004 install front strut bar , front lower bar and 19mm rear anti roll bar today. ULTRA Racing Safety BAR Skudai Jb.

HONDA CIVIC FB 2.0 (2012) ULTRA RACING 2-Point Front Strut Bar [UR-TW2-2808]. Vehicle Safety Bars are being designed to absorb the impact and minimizing the possible damages due to the chassis in an event of collision.

With promising characteristic, Vehicle Safety Bars will not only provide solid handling but also a shield to the passengers.

New 2017 Myvi 1.5 install Ultra Racing Safety bar , front strut bar and 19mm rear anti roll bar. Original rear anti roll bar far too small for this powerful small car.

Ultra Racing Front Strut Bar 2 Point For Perodua Axia 1.0/1.4. Improve Handling Stability.

Highly Recommended for Street, Track, Drift, Rally, Autocross, Gymkhana, Drag Racing and etc Product Material: Light Weight Carbon Steel

Ultra Racing Front Strut Bar 2 Point For Perodua Exora. Improve Sharp Cornering.

Improve Safety Aspect & Comfort