Available Now - BMW 116i/118i (F40) 2018> Performance Exhausts

Cobra Sport has rolled out its latest exhaust development project with a range of systems for the BMW 118i M-Sport (F40), giving the base model some well-deserved attention. With the success of its more powerful siblings (128ti and M135i), the 118i now benefits from an improved exhaust system that enhances both sound and aesthetics.

The Cobra Sport development team have kept things simple with an axle back and a unique dual exit GPF back conversion, ensuring emissions compliance while delivering a more aggressive tone.

For those focused solely on sound, a single-exit axle back exhaust system is available. This setup removes the rear box and replaces it with pipework and a small tonally optimised resonator. Finishing the system is a choice of single 4-inch tailpipes, available in multiple finishes to suit all tastes. 

The second option is a dual-exit GPF back system, designed to directly mimic the look of the M135i and 128ti. This system removes the factory rear box, allowing for a more pronounced exhaust note. Since the 118i doesn’t come with a dual-exit diffuser as standard, an upgrade is necessary—either the official BMW M-Sport diffuser or Maxton’s V1 for the M135i will work. To complete the look, the system features Cobra Sport’s signature 4-inch tailpipe options, available in three stainless steel finishes, two carbon fibre variants, and stealthy ceramic black.

Both systems offer a noticeable upgrade in tone. The single-exit setup is slightly quieter due to the resonator, providing a refined but sportier sound. Meanwhile, the dual-exit system delivers a deeper, more aggressive grumble that transforms the rear-end acoustics and aesthetics.

On the road, the dual-exit system shines, producing a well-balanced mix of bass and tone. Despite the 118i’s three-cylinder engine, the sound remains engaging without excessive drone. Under acceleration, the exhaust opens up beautifully, delivering a more dynamic driving experience while remaining comfortable for daily use.

Cobra Sport’s new exhaust options for the BMW 118i M-Sport bring a significant upgrade in both sound and style. Whether opting for the full rear-end transformation with the dual-exit system or a more subtle sound improvement with the single-exit version, these systems offer an easy way to enhance the 118i’s character—all while maintaining full emissions compliance.

View the full range online > BMW 118i F40 Performance Exhausts

For more technical insights, check out Cobra Sport’s dedicated ‘Exhaust Talk’ videos on YouTube.