Capristo 250-cell sports catalysts Ferrari 355 (5.2/2.7) 02FE03003011

Made from T309 (1.4828) grade stainless steel and hand polished to a mirror finish.

These high-performance sport catalytic converters feature a 250-cell per square inch substrate made from the highest quality materials currently available, designed to improve airflow to your vehicle and increase performance.

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

All that high flow won't help if the substrate is "squeezed" into a small-diameter container or pipe. For this reason, CAPRISTO sport cats come in 5.2-inch packages to maximize exhaust gas flow and valved exhaust system operation.

The CAPRISTO valved exhaust system helps low-end torque by providing exhaust backpressure and increases temperature for proper catalytic converter operation. 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 a CAPRISTO exhaust system or any system that fits directly over the OEM exhaust.

We recommend also purchasing our by-pass valve for the 355 as it helps prevent excessive backpressure and heat buildup.

The ECU will need to be reprogrammed as Sport Cats may activate the Check Engine Light.

*Recommended for off-road and track use only*

Replacing the OEM catalytic converter may activate a CEL (Check Engine Light).

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