BMW S55 Resonated Catted Downpipes M2C M3 M4 W/ Flex Section

These high-performance downpipes are designed to reduce turbo back-pressure, increase horsepower, and provide a deeper, more aggressive exhaust sound without the unwanted rasp. Ideal for Stage 2 tuning and beyond, the catted version features 200-cell catalysts, offering reduced emissions while boosting overall engine performance. Key Features: Up to +30whp / 30wtq: Significant increase in power and torque, especially for high-boost tunes. Enhanced Exhaust Sound: Produces a deep, aggressive exhaust note, distinct from the high-pitched rasp of other catless downpipes. 304 Stainless Steel Construction: Built for durability, performance, and a precise fitment with factory mid-pipes. Improved Turbo Spool & Throttle Response: Reduces back-pressure, ensuring quicker spool times and improved throttle response. 200-Cell Catalysts: The catted version features high-flow 200-cell catalysts to improve emissions and flow efficiency without sacrificing power. Construction & Design:Each downpipe is built with 304 stainless steel and features precision CNC-machined V-band flanges for a smooth, optimal exhaust flow. Equipped with 4" resonators to fine-tune the exhaust sound, providing a rich rumble while eliminating rasp. Fitment Guide: Make: BMW Model: F80 M3, F82/F83 M4, F87 M2 Competition Engine: S55 3.0L Years: BMW F80 M3 (2015-2019) BMW F82 M4 (2015-2020) BMW F83 M4 (2015-2020) BMW F87 M2 Competition (2018-2020)