What This Page Is About
This guide explains common performance modifications and what gains you can realistically expect — especially on naturally aspirated, budget-friendly cars.
No fake horsepower claims, no magic bolt-ons — just real-world results.
Intakes & Exhausts
Intake and exhaust upgrades mainly improve throttle response and sound. Power gains on stock engines are usually small.
- Pod filters mostly change sound, not power
- Heat shielding matters more than filter size
- Exhaust diameter should match engine size
- Too big = loss of low-end torque
Ignition Timing
Timing changes can improve response and efficiency when done correctly. Too much advance will cause knock and can damage the engine.
- Always use the correct fuel octane
- Small changes make a big difference
- More timing ≠ more power forever
- Listen for pinging or knock
Cams & Head Work
These mods can add real power, but they come with trade-offs.
- Camshafts change where power is made
- More lift and duration affects idle
- Head work improves airflow efficiency
- Supporting mods are required
Handling Before Power
Improving handling often makes a car faster and more enjoyable than adding horsepower.
- Good tyres make the biggest difference Using the correct tyre size that is fit for the rim. my 5.5" wide rims take a 175 width tyre but i previously had 185s which were too wide and stretched under hard cornering.
- Suspension improves confidence and grip
- Brakes matter just as much as power
- A slow car driven fast is more fun