Unleash the full potential of your BMW M5 F10 or BMW M6 F13 with the Untd. Performance Catless Downpipe. Specifically designed for the S63 4.4L Twin-Turbo V8, this one-piece, catless downpipe eliminates the restrictive factory catalytic converters and provides unmatched exhaust flow, turbo response, and power gains. Whether you’re racing on the track or enhancing your street machine, this downpipe is engineered to elevate your performance to new heights.
Key Features:
One-Piece Catless Design for Unmatched Exhaust Flow
The Untd. Performance Catless Downpipe features a one-piece design that eliminates the need for factory catalytic converters, providing the most efficient exhaust flow possible. The catless setup drastically reduces backpressure, allowing your S63 engine to breathe freely and deliver maximum performance. Ideal for tuned builds and high-boost applications, this downpipe is perfect for those looking to maximize turbo performance and horsepower.
Enhanced Turbo Response & Power Gains
With a larger diameter and unrestricted exhaust flow, this downpipe allows for faster turbo spool, reduced turbo lag, and a significant increase in horsepower and torque. You’ll feel the improvement in throttle response and acceleration across the entire RPM range—whether you’re on the track or enjoying spirited drives.
Aggressive Exhaust Sound
The removal of the catalytic converters and the larger diameter pipe result in an aggressive, raw exhaust tone. Expect deeper, louder turbo spooling sounds, sharper pops, crackles, and a more visceral driving experience. This is the sound of true performance.
One-Piece Construction for Durability
The Untd. Performance Catless Downpipe is crafted as a one-piece unit for increased strength and durability. This design minimizes connection points, improving reliability and ensuring that the downpipe can withstand the extreme heat and pressure associated with high-performance driving.
High-Quality Stainless Steel Construction
Constructed from premium 304 stainless steel, this downpipe is built to endure extreme temperatures and maintain strength under high pressure. TIG-welded for durability and precision, the downpipe ensures a leak-free fit and long-lasting performance.
Direct Bolt-On Fitment
Designed for easy installation, this downpipe bolts directly to your S63 engine‘s turbos and mid-pipes. No welding or modifications are required, ensuring a smooth, hassle-free upgrade with immediate performance benefits.
Track-Ready, Emissions-Delete Setup
This product is intended for off-road and motorsport use, making it ideal for racing applications and high-performance builds. It’s not emissions-compliant, so it’s perfect for those who do not require street legality or emissions compliance in their region.
Compatibility:
For owners of the BMW M5 F10 and BMW M6 F13 who want to unlock the maximum performance potential of their S63 engine, the Untd. Performance Catless Downpipe is the ideal choice. With its optimized flow, enhanced turbo response, aggressive sound, and one-piece construction, this downpipe is built for enthusiasts who demand the best.
⚠️ Note: This product is designed for off-road and track use only. Not emissions-compliant in all regions. Please check local laws and regulations before installation.
