Maybe add an antimatter level range booster (similar to plasma focusing)

[matthewhively]

(May not be possible)

Name ideas stolen from sots2

Reflex Furnaces
The Reflex furnace uses high energy small focus force fields to capture stray particles from the main reactors Matter/Anti-Matter reaction and force them back together. This results in an auxiliary release of energy which greatly aids in power and thrust production from any engine section fitted with this module.
Wave Amplification
Using quantum harmonics, the tech reduces entropy in the harnessing of power from Anti-Matter reactions, increasing power output. This is an optional tech that appears on all Anti-Matter engines sections as an option, increasing the power created by the section but also increasing its cost.