Optimize your Polaris Patriot Boost's capabilities with the High Flow Anti-Surge Inlet. This part is designed to maximize airflow, resulting in a increase in air volume. By preventing compressor surge, this inlet ensures consistent power output for On/Off/On throttle. Does not fit Stock OEM Turbo, Only Bikeman BIGMO. Stock cover housing coming soon
๐จ What Is Compressor Surge?
Compressor surge happens when the turbo is making more boost than the engine can take in โ usually at low RPM or during throttle lift.
When that happens, the airflow through the compressor wheel stalls or reverses, creating:
A fluttering or chuffing sound
Stress on the turbo bearings and shaft
Slower spool-up and possible long-term damage
โ๏ธ What the Anti-Surge Cover Does
The anti-surge cover has extra air ports or slots around the compressor inlet. These allow a small amount of air to recirculate from the high-pressure area near the wheel back to the inlet when the turbo starts to surge.
This controlled bleed of air:
Prevents the airflow from stalling
Widen the compressor map, meaning the turbo can operate efficiently over a broader range of boost and airflow
Improves low-speed drivability (especially on larger turbos)
Helps the turbo spool more smoothly when coming on boost
*reuse the stock compressor housing O-ring
