Fits: All 355 (early OBD1 requires plug for rear O2 sensor)
Requires 2
The ultimate sports car deserves the ultimate exhaust
Whether you rely on the stock muffler or one of the many aftermarket mufflers available, you are not getting the full benefit with the original equipment catalytic converters. With 35% more airflow than the originals, these converters flow within 4% of strait pipe. This allows you to get full “test pipe” performance, while retaining OBD2 compatibility. You get maximum exhaust flow, while keeping your engine computer out of default mode and your check engine light off. These converters are also 45% lighter than the originals, which reduces the strain on those expensive and trouble prone headers

Hyper-Flow Catalytic Converters offer your Ferrari maximum legal air flow for Maximum performance. Our stainless steel metallic core with its exclusive treating process easily out flows even the best ceramic units, while maintaining full OBD2 compatibility. Even 100 cell ceramic “race cats” are no match for Hyper-Flow converters. In most applications, our core is capable of more air flow than the factory pipe size allows.