Performance Motorsport Parts Decat Downpipes are designed to remove the restrictive OEM Catalytic Converter to improve performance and torque throughout the RPM range. The B58 engine is an incredibly capable unit, delivering strong base figures in all models. If you're planning on tuning your car, or just want more sound, our Decat Downpipe is the perfect system. ---Constructed from High Grade T301 Stainless Steel for durability. ---High Flow design to improve throttle response and engine performance. ---Fully TIG Welded for added strength. ---Designed for Offroad and Track Use only. Compatible with: BMW X3 SUV | G01 | M40i B58 | 2017-2025 BMW X4 SUV | G02 | M40i B58 | 2018-2025 Please Note: This is only compatible with models fitted with a OPF/PPF.
