The aFe MACHForce-XP exhaust for your F3X 340i/440i delivers power gains plus it has an aggressive sound when you want it and a mellow tone when you’re cruising. aFe measured 14hp and 13ft-lb gains on their dyno with this exhaust alone. This high-quality, free-flowing exhaust system is constructed of durable, mandrel-bent 304 stainless steel tubing and TIG welding for long, trouble-free life.
Designed for maximum performance, aFe’s exhaust utilizes a high-flowing pipe and muffler layout from the rear axle to minimize restriction. The polished tips fill out the rear valance and hint at the greater performance within. Note: some trimming of the plastic valance may be required.
Note: This exhaust system is designed to change the tone and increase the volume of the exhaust. Some states or jurisdictions have strict sound regulations that prohibit any changes to the factory exhaust. It is the responsibility of the vehicle owner to ensure his/her vehicle complies with all federal, state, county, or local regulations. Installation of this exhaust will not increase emissions nor cause a check-engine light or fault codes on a properly maintained vehicle. It was developed to work with all factory emissions controls and equipment.
BMW Fitments: 3 SeriesF30 / F31 / F34 (2012-2019) > 340i
F30 / F31 / F34 (2012-2019) > 340i xDrive
4 SeriesF32 / F33 / F36 (14-20) > 440i
F32 / F33 / F36 (14-20) > 440i xDrive
