Killshot Fusion
- Integrated ECU right in the throttle body
- 10x14 Tuning Tables
- Boost compatible
Killshot 2 Pro
- External ECU
- 31x31 Tuning Tables
- Integrated Boost Control
Killshot Fusion vs. Killshot 2 Pro
Both are 4-bbl EFI systems for classic small and big block engines with a 4150 flange and support up to 650 HP.
Fusion is a stripped down version and even has a lite version for lower HP engines, while 2 Pro is a more advanced system for those who want additional features.




- Internal ECU
- Designed for stock-race builds under 650 hp (NA)
- External ECU
- Designed for stock-race builds under 650 hp (NA)
- Largest resolution tables (31x31)
- Dual quad compatible to support up to 1,200 hp
Designed to work with any classic 4, 6, or 8 cylinder engine that is under 650 hp, uses a 4150 style flange, and has a fuel system rated for EFI (43 PSI).
Designed to work with any classic 4, 6, or 8 cylinder engine that is under 650 hp, uses a 4150 style flange, and has a fuel system rated for EFI (43 PSI).
4150
4150
100 lb/hr
100 lb/hr
Yes! This works best for stock-mild builds and for anything beyond that, the system is fully tunable.
Yes! This works best for stock-mild builds and for anything beyond that, the system is fully tunable.
Yes
Yes
Internal
External
Yes
Yes
- Canister Style
- Aces Brand
- Standard Aftermarket
- Aces Brand
- Standard Aftermarket






































