Unlock the full potential of your BMW M2 F87, BMW M3 F80 or BMW M4 F82 with the Untd. Performance Catted Downpipe with Shield. Designed specifically for the S55 3.0L Twin-Turbo Inline-6 engine, this downpipe offers significant performance improvements while maintaining legal emissions compliance. Whether you’re a street enthusiast or a track-day warrior, this downpipe is the perfect upgrade to improve your vehicle’s power, turbo response, and overall driving experience, all while keeping emissions in check.
Key Features:
200 Cell High-Flow Cat for Better Flow and Emissions Compliance
The 200-cell high-flow catalytic converter provides a balance between power and emissions compliance, optimizing exhaust flow without sacrificing the environment. This setup improves exhaust velocity, reducing turbo lag and helping your engine produce more power across the RPM range while still maintaining legal emissions levels for street use.
Improved Turbo Response & Increased Power
By increasing exhaust flow and reducing backpressure, this downpipe allows your S55 engine to spool its turbos faster and more efficiently. The result is quicker throttle response, reduced turbo lag, and an immediate increase in both horsepower and torque, especially in higher RPMs. Whether you’re at the track or driving on the street, this downpipe maximizes engine efficiency and performance.
Aggressive Exhaust Tone with Refined Sound
Designed to provide a more aggressive exhaust note, this downpipe amplifies the turbo spool sounds and produces louder pops and crackles, giving your BMW a motorsport-inspired exhaust tone. While still legal for street use, it enhances the overall driving experience by adding a deeper, more refined growl to your car’s exhaust sound.
Premium 304 Stainless Steel Construction
Crafted from 304 stainless steel, the Untd. Performance Catted Downpipe is designed to withstand the heat and pressure generated by your turbocharged engine. The TIG-welded construction ensures a durable, leak-free performance, and the precision CNC-machined flanges provide a secure fit for long-lasting reliability.
Heat Shield for Optimal Temperature Control
This downpipe is equipped with a heat shield to protect surrounding components from the high temperatures generated by the exhaust gases. The heat shield helps maintain optimal exhaust temperatures and ensures that your performance gains are not compromised by heat-related issues.
Direct Bolt-On Fitment
Installation is straightforward, as the downpipe bolts directly to your factory turbos and mid-pipes. No modifications, welding, or cutting is necessary—just pure bolt-on performance that allows you to experience enhanced power and sound without the hassle.
Compatibility:
For BMW M3 F80 and BMW M4 F82 owners seeking improved performance without sacrificing emissions compliance, the Untd. Performance Catted Downpipe with Shield is the perfect solution. Offering a blend of improved power, quicker turbo spool, and a refined exhaust sound, this downpipe delivers everything you need for an enhanced driving experience—whether on the street or the track.
⚠️ Note: This product is emissions-compliant in certain regions. Please check your local laws before installation. Ideal for street, track, and off-road use.
