2021 BMW X3 M40i Performance Parts

BMW B58 (Gen 1 / Gen 2 / Gen 3) – EPA-Compliant 400 Cell Catted Downpipes Engineered for the B58 Turbocharged Inline-6 • High-Flow • Compliant • Introducing Our NEW 400 Cell EPA-Compliant Downpipes for the B58 Platform Across every generation, the B58 turbocharged...

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...

Unlock the untapped potential of your BMW's engine with the MAD High Flow Air Intake, specifically designed for BMW X3 & X4 models with B58 engines. Aimed to please both the performance enthusiast and the everyday driver, this product provides a seamless blend of...

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...

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,...

MAD BMW X3 X4 X5 X6 X7 G-Series B58 Front Mount Silicone Intake Unlock More Airflow. More Sound. More Performance. Take your BMW B58 to the next level with the MAD Front Mount Silicone Intake, engineered specifically for G-Series platforms. Designed to increase airflow,...

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...

MAD X3/X4 M40 Catback Exhaust B58 G01/G02 Unleash the Ultimate Sound and Performance Experience the perfect blend of sound, performance, and style with the MAD Catback Exhaust System for your BMW X3 M40i (G01) and X4 M40i (G02) equipped with the B58 engine. Elevate...

Upgrade your BMW with the distinct and dynamic MAD Yellow Daytime Running Lights, inspired by GT racing cars. These BMW headlights, featuring yellow daytime running lights, bring a racetrack-inspired aesthetic to your vehicle’s front end. Experience a captivating welcome sequence with yellow illumination when...

Rock Guard: CSF knows the kind of punishment the front of a car can take on or off the track. The wrong bit of debris flying through the front grille can quickly punch a hole in a cooler. Because the Transmission cooler sits at...

Main Bearing Set for BMW B58B30, S58B30 3.0L Inline 6 - Standard with extra .025mm (0.001") oil clearanceThis Part Fits: Year Make Model Submodel 2016-2018 BMW 340i Base 2023-2026 BMW M2 Base 2021-2026 BMW M3 Base 2021-2026 BMW M3 Competition 2022-2026 BMW M3 Competition...

No matter what you drive, or how you drive it controlled stopping power, in all conditions is necessary. Brembo brake kits come with everything you need. Prime low-Met pads ensure comfort and quality, with a specific focus on performance, thanks to patented solutions, full...

No matter what you drive, or how you drive it controlled stopping power, in all conditions is necessary. Brembo brake kits come with everything you need. Prime Ceramic Brake Pads minimize noise and vibration for maximum driving comfort. Also, reduced friction wear and low...