2026 BMW M340i xDrive Base Performance Parts

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...

Enhance your vehicle's exhaust system with the MAD Valve Controller, the ultimate tool for customizing your exhaust sound and performance. Designed to override factory settings, this controller gives you complete control over your exhaust flap, allowing you to tailor the exhaust note to match...

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,...

The MAD BMW M340 / M440 Axle Back Exhaust System is designed to deliver a bold sound upgrade without unnecessary parts or added cost. Unlike our previous full catback design, this updated version is more cost-effective, easier to install, and focuses only on the...

MAD Valve Controller Essentials Everything You Need. Total Control. No Guesswork. Take full control of your exhaust sound with the MAD Valve Controller Essentials a simplified, plug-and-play solution designed around the valve positions enthusiasts use most every day. Unlike the factory system, which constantly...

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...

MAD BMW M340i M440i B58 G20 G22 Front Mount Silicone Intake Unleash the full potential of your B58-powered M340i or M440i with the MAD Front Mount Silicone Intake, designed for maximum airflow, improved turbo response, and an aggressive intake sound. Key Features: Enhanced Airflow...

MAD introduces their G-chassis B58 BMW Turbo Inlet/Resonator Delete Pipe, a product designed to optimize airflow from the intake to the turbo, eliminating restrictions and increasing the inlet diameter for improved power and turbo efficiency. The MAD G-chassis turbo inlet pipe offers a seamless...

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...

KW V2 INOX-LINE coilovers are the perfect solution for drivers who want more than just outstanding looks and adjustable ride height. In addition to stainless steel coilover struts, and corrosion-resistant components built for long term durability, KW V2 coilovers utilize TVR-A (Twin Valve Rebound...

Tired of drone but still want the full bodied tone of the Track Edition? Convert your existing AWE Track Edition Cat Back into a Touring Edition by swapping your existing straight-through Track Edition rear sections with AWE's straight-through, patented drone-canceling 180 Technology® resonators. Tips...

Convert your existing AWE Touring Edition Cat Back into a Track Edition by swapping the rear 180 Technology® sections with Track Edition straight sections.This Part Fits: Year Make Model Submodel 2020-2026 BMW M340i Base 2020-2026 BMW M340i xDrive Base 2021-2026 BMW M440i Base 2021-2026...

Replace your existing non-resonated mid pipes with resonated mid pipes for additional sound tuning -- particularly recommended to be used with aftermarket downpipes.This Part Fits: Year Make Model Submodel 2020-2026 BMW M340i Base 2020-2026 BMW M340i xDrive Base 2021-2026 BMW M440i Base 2021-2026 BMW...