Unlock the true potential of your BMW M3 F80 or BMW M4 F82 with the Untd. Performance 3″ Catless Downpipe. Designed specifically for the S55 3.0L Twin-Turbo Inline-6 engine, this downpipe removes the restrictive factory catalytic converters, allowing for maximum exhaust flow, quicker turbo spool, and significant performance gains. Whether you’re aiming for higher power levels, faster throttle response, or an aggressive exhaust sound, this catless downpipe is built to deliver the ultimate performance experience.
Key Features:
Full 3” Catless Design for Maximum Flow
The 3” Catless Downpipe eliminates the restrictive factory cats, significantly improving exhaust flow and reducing backpressure. This results in quicker turbo spool, enhanced power output, and more efficient exhaust scavenging—ideal for heavily tuned builds or high-boost applications where maximizing flow is essential.
Aggressive Exhaust Sound
The catless design unleashes a raw and aggressive exhaust note from the S55 engine. Expect louder turbo spool, more pronounced pops and crackles on deceleration, and a deeper, motorsport-inspired tone that turns heads on every drive. It’s the perfect soundtrack for performance enthusiasts looking to enhance their vehicle’s audio profile.
Increased Power & Turbo Response
By optimizing exhaust flow, this downpipe allows your S55 engine to breathe easier, resulting in quicker turbo spool and a noticeable bump in horsepower and torque. With reduced turbo lag and a more responsive throttle, you’ll experience faster acceleration, improved power delivery, and an exhilarating driving experience both on the street and at the track.
High-Quality Construction
Built from premium 304 stainless steel, the Untd. Performance 3″ Catless Downpipe is designed to withstand extreme temperatures and high exhaust pressures. The precision TIG-welded construction ensures durability and strength, while the CNC-machined flanges provide a perfect, leak-free fit.
Direct Bolt-On Fitment
This downpipe is designed for direct bolt-on installation, making it a hassle-free upgrade for your M3 or M4. It bolts directly to the factory turbos and mid-pipes, requiring no welding or modifications. Whether you’re upgrading your car’s performance for track use or enhancing your daily driving experience, installation is quick and easy.
Compatibility:
For BMW enthusiasts who demand maximum performance, the Untd. Performance 3″ Catless Downpipe is the perfect upgrade. Unlock more power, improve throttle response, and give your M3 or M4 a louder, more aggressive sound. Designed to handle high-performance conditions, this downpipe is built to deliver where it matters most: maximum exhaust flow.
⚠️ Note: This product is intended for off-road and track use only. Not emissions-compliant in all regions. Please check your local laws before installation.
