$595.00 USD
$595.00 USD












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Upgrade the sound and performance of your BMW M3 and M4 with the MAD BMW F8x M3 M4 Single Midpipe (Brace Included). This exceptional midpipe is designed to eliminate back pressure, allowing your engine to breathe freely and unleash its true potential. Experience a noticeable increase of up to 18 whp and 30 wtq, delivering a thrilling boost in power.
Crafted with precision, the MAD S55 single midpipe guarantees a perfect fit on the BMW F80 M3 and F82/F83 M4 models. To ensure a hassle-free installation, each midpipe comes with an exhaust brace, providing added support and optimal fitment. Say goodbye to complicated modifications and enjoy a straightforward upgrade.
One of the standout features of this midpipe is its smooth bends, allowing for maximum airflow without any drone. Experience a refined and aggressive exhaust note that enhances the overall driving experience, both on the street and the track. Whether you're a performance enthusiast or simply seeking a more exhilarating soundtrack for your BMW, this midpipe is a must-have upgrade.
We stand behind the quality of our products, which is why the MAD BMW F8x M3 M4 Single Midpipe comes with a lifetime warranty on defects and fitment. Additionally, we offer a 90-day return period, ensuring your complete satisfaction.
Ordering from us is convenient and efficient. All orders are promptly processed and shipped within 1-2 business days, allowing you to get your hands on this exceptional midpipe in no time. Elevate your BMW M3 or M4 to new heights with the spot-on fitment and performance gains offered by the MAD BMW F8x M3 M4 Single Midpipe. Take advantage of this superior upgrade and unleash the full potential of your vehicle.
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.