Introducing the MAD X3M X4M Axle-Back Exhaust System, designed to elevate your BMW X3M or X4M driving experience. This premium exhaust system merges performance, sound, and style in a seamless upgrade.
Crafted for perfect compatibility, the MAD X3M X4M Axle-Back Exhaust can be paired with either the MAD Single Midpipe or the factory midpipe, offering you flexibility and customization to match your preferences.
Constructed from high-quality 304 stainless steel and precision-engineered for optimal performance, this exhaust system ensures a perfect balance of power and refinement. Enjoy a robust exhaust note that commands attention, along with improved exhaust flow for maximum efficiency.
The MAD X3M X4M Axle-Back Exhaust System not only boosts your vehicle’s sound and performance but also enhances its visual appeal with a sleek and aggressive design that will turn heads. Upgrade to experience the full potential of your BMW X3M or X4M.
Key Features:
Compatible with Factory Midpipe (cutting required) or MAD Single Midpipe (no cutting required)
Gains up to +5 HP and +5 lb-ft of torque
Louder, sportier exhaust sound
Drone abatement technology reduces cabin noise
4.0-inch (101mm) tips
Reuses stock exhaust valve actuators; exhaust tone adjustable via M-drive settings
Retains computer-controlled exhaust valves for low-speed noise control and full opening under high load
100% 304 Stainless Steel construction
Includes all necessary mounting hardware for factory-like fitment
Fitment:
2019 - 2023 BMW X3M F97
2019 - 2023 BMW X4M F98
Elevate your BMW X3M or X4M's sound and performance with the MAD Axle-Back Exhaust System. Pre-order now for an August 9th, 2024 release and experience the thrill of true performance.
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TERMS (REQUIRED)
OFF-ROAD USE POLICY & EMISSIONS COMPLIANCE NOTICE
California Proposition 65 Warning:
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.
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.
Civil penalties up to $4,819 per violation per vehicle
Possible criminal penalties under the Clean Air Act
Revocation of registration or smog certification by DMV or local authorities
State & Local Regulations:
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local
regulations before purchasing or installing emissions-related products.
Intended Use & Customer Certification:
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.
Company Policy Statement
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.
