The twin-turbocharged S58 engine uses a plastic y-pipe to merge air from the turbo charge pipes into a single stream before it is routed to the throttle housing. This section also holds the intake temperature and pressure sensors. Upgrading to an all-metal Y-pipe has 2 main benefits:
Improved Reliability: The factory plastic pipe is a common failure point. With age, high internal pressure, and constant heat cycles, the plastic becomes brittle and develops cracks, resulting in boost leaks, check engine lights, and poor running conditions.
Improved Performance: Upgrading the molded plastic Y-pipe with this aerodynamic 6061 aluminum version offers smoother air delivery, improving throttle response and increasing power.
This kit is designed to fit G87 M2 (2023+), G80 M3 (2021+), G82/G83 M4 (2021+), F97 X3M (2020+), and F98 X4M (2020+).
Replaces BMW part # 13718054842 (13-71-8-054-842).
Upgraded charge-air pipe set available separately. Please see below for BimmerWorld recommended related items.
Emissions Notice: This product is a direct replacement for the original and closely replicates or improves on the original in fitment, form, and function. As a direct replacement upgrade it has not been designed to trick or disable any emissions controls. It is designed to work with all factory emissions controls in place. However, it has not been evaluated nor tested for emissions compliance and is not legal for installation or use in California on any pollution controlled motor vehicle or in any state, province, or jurisdiction governed by, or which has adopted, CARB regulations for aftermarket parts.
BMW Fitments:
2 Series
G87 (2023-) > M2 (2023+)
G87 (2023-) > M2 CS (2026+)
3 Series
G80 (2021-) > M3 (2021-)
G80 (2021-) > M3 Competition RWD (2021-)
G80 (2021-) > M3 xDrive Competition (2021-)
4 Series
G82 / G83 (2021-) > M4 (2021-)
G82 / G83 (2021-) > M4 CSL
G82 / G83 (2021-) > M4 Competition RWD (2021-)
G82 / G83 (2021-) > M4 xDrive Competition (2021-)
X3 Series
F97 X3M (2020-2024) > X3M
X4 Series
F98 X4M (2020-2025) > X4M