F8X M2/M3/M4 Z Tech Midpipe

Most S55 midpipes force a trade-off: live with single-midpipe drone, or put up with the typical 2,000 RPM rasp that comes with an equal-length design's higher-pitched scream. Z Tech avoids both: its equal-length design pairs a lightweight Z crossover with dual resonators, cutting weight over the factory midpipe while cleaning up the rasp down low and keeping the S55's aggressive, high-pitched top-end scream intact, best of both worlds. Prefer maximum flow and the highest-pitched note instead? Skip the resonators entirely. Fits F87 M2C / F80 M3 / F82 M4. Pair it with an axleback to complete a full catback system.