CTS Turbo High-Flow CAT for F/G series BMW 120i, 220i, 230i, 320i, 330e, 330i, 420i, 430i, 630i, 730i & xDrive

This CTS Turbo high-flow catalytic converter is engineered as a direct replacement for the restrictive factory unit fitted to F/G series BMW models including 120i, 220i, 230i, 320i, 330e, 330i, 420i, 430i, 630i, 730i and their xDrive variants. Its high-flow substrate cuts exhaust backpressure compared to the stock cat, helping the engine breathe more freely through the mid and top range. Built for a straightforward bolt-in fitment, it suits owners chasing a more responsive exhaust note and improved flow as part of a broader tuning setup, without the hassle of custom fabrication.