Enhance the Performance of your BMW N55 F20 F21 M135i with Stone Exhaust OEM Integrated Valve Catback Exhaust System

Enhance the Performance of your BMW N55 F20 F21 M135i with Stone Exhaust OEM Integrated Valve Catback Exhaust System If you own a BMW F20 5 Door & F21 3 Door M135i, and are looking to enhance its performance and sound, then the Stone Exhaust OEM Integrated Valve Catback Exhaust System is a must-have addition for you. This world-class exhaust system incorporates state-of-the-art engineering techniques and technologies for performance enhancement and is considered a top choice among BMW enthusiasts globally. Stone Exhaust has been a pioneer in the field of exhaust system development since 1998. Through advanced 3D scanning and reverse engineering techniques, Stone engineers have designed a 100% OEM fitment exhaust that delivers enhanced power and the signature Stone exhaust sound. This is validated by our in-house dyno, ensuring your BMW continues to run smoothly while flaunting an improved and deeper exhaust sound. Key Features The Stone Exhaust OEM Integrated Valve Catback Exhaust System is packed with several unique features that make it a standout. 1. It integrates seamlessly with your BMW's original components. 2. It comes with the optional Stone Valvetronic System, which provides remote control over exhaust system valves. 3. It incorporates a plug-and-play OBDII controller for easy installation and adjustment. 4. The entire system is a one-piece design, ensuring durability and longevity. 5. All components are mechanically welded for precision. 6. The system is developed entirely in-house with 3D scanning & reverse engineering. 7. Dyno developed to ensure performance improvement. 8. The system eliminates drone sounds found in standard exhaust systems. Enhanced Craftsmanship - R&D and Precision Bending Stone Exhaust's in-house engineering team utilizes advanced 3D scanning and simulation software to optimize the design and performance of its exhaust systems. The 7 Axis CNC Bending Machine, a gold standard in industries like aerospace and defense for high precision delivery, makes it possible to reach an impressive 98% roundness while maintaining a minimal outer bore wear. Exceptional Techniques - Welding and Spot Welding Stone Exhaust also incorporates the crisscross and overlapping welding techniques that boost the endurance of connection points, resulting in a more reliable performance. Furthermore, direct spot welding done by mechanical arms enhances product strength and ensures greater precision compared to manual welding. Compatibility The Stone Exhaust OEM Integrated Valve Catback Exhaust System is compatible with: 1. BMW F20 M135i/M135i xDrive (2011+) 2. BMW F20 LCI M135i/M135i xDrive (2015+) 3. BMW F21 M135i/M135i xDrive (2011+) 4. BMW F21 LCI M135i/M135i xDrive (2015+) Peace of Mind with Warranty In terms of warranty, the Stone Exhaust system comes with a two-year warranty, ensuring you have peace of mind knowing your investment is protected. So if you're looking at enhancing your BMW's performance and sound, consider the Stone Exhaust OEM Integrated Valve Catback Exhaust System. It's not just a car part - it's an upgrade that makes your vehicle perform better, sound deeper and provides an overall superior driving experience.