Part
Fuel Vortexer IV
Legendary
Tier 4
Surging
4000 credits
While 
Surging, 
Afterburner can burn 300% longer.
- How to unlock
- Complete 115 events.
Every tier of Fuel Vortexer
| Part | Rarity | Tier | Effect | Price |
|---|---|---|---|---|
| Fuel Vortexer I | Common | 1 | While Surging, Afterburner can burn 75% longer. |
2000 |
| Fuel Vortexer II | Rare | 2 | While Surging, Afterburner can burn 150% longer. |
2500 |
| Fuel Vortexer III | Epic | 3 | While Surging, Afterburner can burn 200% longer. |
3000 |
| Fuel Vortexer IV | Legendary | 4 | While Surging, Afterburner can burn 300% longer. |
4000 |