Downpipe sport catalysts 250 cells stainless steel capristo mercedes e63 (212) 2011 - 2017 02MB02403037

The cell count of a catalytic converter refers to the number of holes per square inch and is a direct indication of the flow capabilities of that converter. The lower the hole count, the larger the hole must be to fill a square inch; a larger hole subsequently allows more exhaust gas to flow.

All that high flow won't help if the converter is "squeezed" into a can or pipe that's too small in diameter. For this reason, CAPRISTO Sports Cats are packaged in 5.2-inch packages to maximize exhaust flow and valved exhaust system operation.

The CAPRISTO valved exhaust system helps with low-rpm torque by providing exhaust backpressure and increases temperature for proper catalytic converter operation. While in the high RPM open-valve condition, it takes full advantage of the free-flow characteristics of the CAPRISTO Sport Cats by optimizing the high-energy exhaust at the ideal temperature and backpressure to maximize performance.

These catalytic converters can easily be retrofitted to CAPRISTO exhaust systems or any system that fits directly over the OEM exhaust.

Recommended for off-road and track use only

Replacing the OEM catalytic converter(s) may cause the CEL (Check Engine Light) to trip.

To disable a recurring CEL, you will need to tune your ECU or use 02 sensor extensions.