New groundbreaking performance from Milltek. A 3" primary pipe with METAL cat for only $649. Now in stock and ready to fly. The fastest spool-up and class-leading catalyzation. Metal cats mean more flow (ceramic cats need more power-robbing density in order to equal the performance of METAL). Get yours now! Fits all IV-series Golf, Jetta, GTI, GLI, 337, Anniversary 1.8T. Now includes full 200-Cell HJS cats (not shown). Does Not Fit Automatic Transmission Cars.