2025 BMW M440i Gran Coupe Base Performance Parts

G2X BMW M340i/M440i Rear Exhaust At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to...

G4X BMW M240i Rear Exhaust At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire...

Active Introduces its G2X Brace for larger exhaust systems on your M340i or M440i car. Available January 2025 at an introductory price of $349 and will be included in our G2X M340i/M440i Midpipes. The Active Autowerke G2X Chassis Brace or M340i Brace replaces your...

G2X BMW M340i/M440i Mid-Pipe At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to develop...

Custom built multi-function digital boost gauge and more for the G20, G21, G22, G23, G26, G42, G80, and G82 generation (2019-2024) BMW 2 Series, 3 Series, and 4 Series, including 218i, 220i, M240i, 318i, 320i, 330i, M340i, M3, 420i, 430i, M440i, and M4 models....

Boost tap kit for BMW B48 / B58 engines. Includes approximately 60" of 5/32" O.D. plastic tubing, zip ties, and connector hoses. This kit does not include a gauge or sensor, sold separately.

Upgrade from the stock B58 downpipe to the MAD B58 catted downpipe for maximum airflow, power, and sound! Introducing the Mad Catted B58 Downpipe, the perfect upgrade for BMW enthusiasts looking to enhance their vehicle's performance and exhaust sound. Crafted from premium quality 304...

Upgrade your turbocharged BMW or Toyota Supra with the MAD B58 Gen 2 Charge Pipe, engineered to improve airflow, durability, and throttle response while eliminating the weak factory plastic charge pipe prone to cracking under boost. Designed as a direct OEM replacement, this performance...

Upgrade from the stock B58 downpipe to the MAD B58 catless downpipe for maximum airflow, power, and sound! The Mad Catless B58 Downpipe is an essential upgrade for any BMW enthusiast looking to maximize the performance of their B58 engine. Made from high-quality materials,...

Upgrade your stock B58 downpipe to the MAD B58 Catted Downpipe for more power, better sound, and guaranteed reliability without triggering a check engine light. The MAD Catted B58 Downpipe is the ideal performance upgrade for BMW owners who want more out of their...

Enhance your 2025+ BMW M340 & M440 with the MAD BMW B58 Gen 3 5" 200 Cell Catted Downpipe—engineered specifically for performance enthusiasts seeking a cleaner and refined upgrade. Built with premium-quality 304 stainless steel and equipped with a high-flow catalytic converter, this downpipe...

Upgrade your 2025+ BMW M340 M440 with the MAD BMW B58 Gen 3 "Fat Boy" 5.0" Catless Downpipe—the ultimate performance upgrade designed to unleash the full potential of your engine. Crafted from premium-quality 304 stainless steel, this larger-diameter 5.0-inch downpipe offers superior airflow, delivering...

Introducing the MAD BMW M340 M440 High Flow Air Intake W/ Heat Shield - a groundbreaking system designed specifically to elevate your BMW M340 M440 to new performance heights. Precision-engineered, this intake system harmoniously blends enhanced functionality with an added touch of elegance to...

The SPL BMW G2X Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the G2X BMWs (M340i, M440i, etc) while eliminating bushing deflection resulting in sharpened steering response and driving precision.The ability to run more negative camber and a...

The Injen Technology engineers spent abundant amounts of time designing, testing, and perfecting this performance Cold Air Intake system to develop some serious bolt-on power. The soul of this Cold Air Intake system is with our smooth, mandrel-bent, over-sized 4.00" O.D. T6-6061 aluminum tube...