BMW M340i Exhaust: Axle-Back vs Cat-Back Comparison
Explore the differences between axle-back and cat-back BMW M340i exhaust systems, focusing on sound, drone, and daily usability for your vehicle.
By Lee Shahin ·
Modification & Performance Parts
Vehicle-specific upgrade decisions, with fitment and legality evidence required before a product is recommended.
Performance parts by model
- BMW M340i mods (1233 parts)
- BMW M4 mods (910 parts)
- BMW M3 mods (931 parts)
- BMW M2 mods (701 parts)
- 2015-2018 BMW M3 mods (1147 parts)
- 2015-2020 BMW M4 mods (657 parts)
- 2016-2021 BMW M2 mods (1268 parts)
- 2008-2013 BMW M3 mods (960 parts)
- 2001-2006 BMW M3 mods (1084 parts)
- 2016-2018 BMW 340i mods (1087 parts)
- BMW M240i mods (559 parts)
- 2017-2021 BMW M240i mods (958 parts)
- BMW X3 M40i mods (610 parts)
- 2017-2020 BMW 440i mods (1018 parts)
- 2015-2021 VW Golf GTI mods (1590 parts)
- VW Golf GTI mods (914 parts)
- 2015-2019 VW Golf R mods (1556 parts)
- VW Golf R mods (777 parts)
- VW Jetta GLI mods (989 parts)
- Audi S4 mods (809 parts)
- 2010-2016 Audi S4 mods (989 parts)
- Audi RS3 mods (569 parts)
- 2017-2020 Audi RS3 mods (781 parts)
- 2015-2020 Audi S3 mods (1245 parts)
- Audi A4 mods (763 parts)
- Audi RS5 mods (598 parts)
- 2014-2017 Audi SQ5 mods (627 parts)
- 2012-2019 Porsche 911 mods (283 parts)
- 2011-2018 Porsche Cayenne mods (191 parts)
Start with these guides. Product recommendations within each article have their own disclosures. Confirm fitment against your vehicle and the retailer before ordering.
Modification & Performance Guides
Lowering Springs vs Coilovers for European Daily Drivers
Compare lowering springs vs coilovers for European daily drivers. Learn ride quality, cost, and handling differences to choose the right suspension upgrade.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides · BMW
Best Mods for a Stock BMW M340i: Organized by Goal - M340i Mods
Explore the best first m340i mods, organized by goal, to enhance your BMW M340i's performance and style without breaking the bank.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides · BMW
BMW M340i Lowering Springs vs Coilovers for Daily Driving
Compare BMW M340i lowering springs and coilovers for daily driving, covering ride quality, handling, installation complexity, and long-term maintenance costs.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides · BMW
BMW M340i Wheel Fitment: Diameter, Width, Offset, Tires
BMW M340i Wheel Fitment guide covering factory wheel diameter, width, offset specifications, compatible tire sizes, and xDrive differences.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides · BMW
BMW M340i Front Lip: ABS vs Polyurethane vs Carbon Fiber
Compare BMW M340i front lip materials: ABS, polyurethane, and carbon fiber. Learn fitment requirements, durability differences, and installation considerations.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides
European Car Brake Upgrades: Pads, Rotors and Street vs Track
Explore European Car Brake Upgrades, including pads, rotors, and the key differences between street and track options for your vehicle.
By Lee Shahin ·
Explore: Brakes & Brake Fluid · Modification & Performance Parts
Modification & Performance Guides
European Car Suspension Upgrades: Your Daily-Driver Guide
Explore European car suspension upgrades for daily driving: springs, shocks, and sway bars. Make informed decisions for handling and ride quality.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides
Polyurethane vs Rubber Bushings for European Street Cars
Explore the pros and cons of polyurethane vs rubber bushings for European street cars, examining performance, durability, and comfort.
By Lee Shahin ·
Explore: Modification & Performance Parts
Modification & Performance Guides · BMW
BMW M340i Intake vs Tune: Which Upgrade Should Come First?
Explore whether to upgrade your BMW M340i with an intake or tune first. Understand the benefits and risks of each BMW M340i Intake vs Tune option.
By Lee Shahin ·
Explore: Modification & Performance Parts