- What to know
- Subnautica 2 Cavitation Muffler overview
- What the Cavitation Muffler actually does
- Where to find the Cavitation Muffler location
- How to get the Cavitation Muffler blueprint
- Cavitation Muffler crafting recipe
- Why the upgrade is stronger than it first appears
- Best upgrade combinations for the Tadpole
What to know
- The Cavitation Muffler is a Tadpole upgrade module focused on stealth and safer exploration.
- You can find it in the dangerous Metal Farms biome near the map edge.
- Its main benefit is reducing the noise your Tadpole produces, lowering hostile creature detection.
- The module is crafted using Titanium and Strontium after unlocking its blueprint.
If you are starting to explore deeper and more hostile regions in Subnautica 2, the Cavitation Muffler quickly becomes one of the most useful upgrades for the Tadpole. While it does not improve speed or durability directly, it dramatically changes how safely you can travel through leviathan-heavy biomes and late-game areas.
Subnautica 2 Cavitation Muffler overview
| Feature | Details |
|---|---|
| Upgrade Type | Tadpole Module |
| Main Effect | Reduces Tadpole noise output |
| Best Use | Stealth exploration |
| Found In | Metal Farms biome |
| Nearby Threat | Leviathan-class creature |
| Crafting Materials | 3 Titanium, 2 Strontium |
| Vehicle Required | Tadpole |
| Upgrade Slot | Tadpole Module Slot |
What the Cavitation Muffler actually does
The Cavitation Muffler reduces the sound signature of your Tadpole vehicle. In practical gameplay terms, this means hostile creatures are less likely to notice or track you while moving through dangerous waters.

This upgrade becomes especially valuable once you begin traveling into:
- Leviathan patrol zones
- Deep biome entrances
- Resource-heavy hostile areas
- Edge-of-map exploration routes
Unlike armor upgrades that help after combat starts, the Cavitation Muffler is designed to help you avoid fights entirely. That makes it one of the strongest utility modules for cautious exploration builds.
The name itself references real-world cavitation, which happens when fast-moving propellers create loud vapor bubbles underwater. Those bubbles create noise that can easily reveal submarine locations.
Where to find the Cavitation Muffler location
The Cavitation Muffler blueprint is located inside the Metal Farms biome, which is around 250 to 300 meters deep. According to current Early Access discoveries, this area sits roughly 700 meters east-southeast of the Alien Base and 1900 meterss from the Lifepod in the east direction.

This biome is considered one of the more dangerous mid-to-late-game regions because:
- It is close to the current map boundary
- Visibility can become poor
- Aggressive creatures patrol nearby
- A leviathan-class predator roams the zone
How to get the Cavitation Muffler blueprint
Step 1
Travel to the Alien Base progression area first. This is part of the normal Tadpole upgrade route in the current Early Access build.

Step 2
Head roughly 700 meters east-southeast toward the Metal Farms biome. Bringing extra batteries and repair tools is highly recommended.

Step 3
Use your scanner to search the biome carefully. The blueprint appears as a scannable upgrade technology.

Step 4
Avoid unnecessary movement bursts while searching. Staying low and moving slowly can help reduce predator attention before you unlock the module itself.

Step 5
Scan the blueprint fully to permanently unlock the crafting recipe.

Cavitation Muffler crafting recipe
Once unlocked, you can craft the module using the Modification Station.
| Material | Quantity |
|---|---|
| Titanium | 3 |
| Strontium | 2 |
The recipe is fairly affordable compared to some late-game Tadpole upgrades, making it a strong early investment if you prefer exploration over combat encounters.
Why the upgrade is stronger than it first appears
At first glance, the Cavitation Muffler may seem less exciting than upgrades like the Depth Module or Engine Efficiency module. However, experienced players are already finding it extremely valuable in high-threat exploration routes.
The biggest advantage is consistency. Avoiding detection entirely is usually safer than surviving an attack.

This becomes important when:
| Situation | Benefit |
|---|---|
| Exploring deep caves | Fewer hostile encounters |
| Harvesting rare resources | More time gathering |
| Navigating leviathan zones | Reduced detection risk |
| Traveling long distances | Safer uninterrupted movement |
| Multiplayer exploration | Better stealth coordination |
In co-op especially, stealth modules may become even more useful because multiple vehicles naturally create more noise.
Best upgrade combinations for the Tadpole
The Cavitation Muffler works especially well when combined with other utility-focused modules.
| Upgrade | Synergy |
|---|---|
| Engine Efficiency | Longer stealth expeditions |
| Depth Module MK1 | Safe deep exploration |
| Photovoltaic Charger | Sustained surface scouting |
| Strike Armor | Backup protection if spotted |
Players focused on survival and resource runs will likely prioritize this module earlier than aggressive explorers.
Compared to earlier games in the series, Subnautica 2 places heavier emphasis on vehicle management and biome danger scaling. The Tadpole is much faster than early vehicles from previous games, but speed naturally creates more risk.
That makes stealth-oriented upgrades surprisingly valuable. Instead of treating every encounter like a fight, the game rewards careful navigation and preparation.
The Cavitation Muffler perfectly fits that design philosophy.