Part
Spark Plugs II
Rare
Tier 2
Ignition
2500 credits
Perfect Start moderately increases 
Speed.
- How to unlock
- Complete 4 events.
Every tier of Spark Plugs
| Part | Rarity | Tier | Effect | Price |
|---|---|---|---|---|
| Spark Plugs I | Common | 1 | Perfect Start slightly increases Speed. |
2000 |
| Spark Plugs II | Rare | 2 | Perfect Start moderately increases Speed. |
2500 |
| Spark Plugs III | Epic | 3 | Perfect Start considerably increases Speed. |
3000 |
| Spark Plugs IV | Legendary | 4 | Perfect Start greatly increases Speed. |
4000 |