There are a few key ways in which hydro boost is better than vacuum:
1. Hydro boost provides more consistent, reliable power. This is because it uses hydraulic pressure rather than vacuum pressure to provide power assist. This means that there are no fluctuations in power delivery, making for a smoother, more responsive driving experience.
2. Hydro boost is less likely to fail than vacuum assist systems. This is because it uses simpler components and there are fewer potential points of failure.
3. Hydro boost requires less maintenance than vacuum assist systems. This is because there are fewer moving parts and no need to regularly check and replace filters or other consumable items