Untd. Performance Catless Downpipe – BMW M5 M8 F90/F91/F92/F93 2017-2021 S63 Style 2 – SS 304

Unlock the true performance potential of your BMW M5 or M8 with the Untd. Performance Catless Downpipe. Specifically designed for 2017-2021 BMW M5 F90, M8 F91/F92/F93 S63 engines, this catless downpipe removes the restrictive factory catalytic converter to enhance exhaust flow, increase horsepower, and reduce turbo lag. Whether you’re looking for a noticeable boost in engine performance or a more aggressive exhaust note, this downpipe upgrade is the key to unleashing your BMW’s full potential.

Crafted from 304 stainless steel, this high-performance downpipe ensures maximum durability and longevity, allowing you to push your vehicle to the limit on the track or during spirited driving sessions.

Key Features:

Catless Design for Optimal Exhaust Flow
The catless design eliminates the restrictive catalytic converter, enabling maximum exhaust flow with reduced backpressure. This results in quicker turbo spool, reduced turbo lag, and a significant increase in horsepower and torque. The enhanced flow also leads to better throttle response and more immediate power delivery.

Enhanced Exhaust Sound
With the removal of the catalytic converter, this downpipe delivers a louder and more aggressive exhaust note. The deep, throaty growl of the BMW S63 engine comes to life, with turbo spool and crackles that add to the thrill of every drive. Whether on the street or the track, this downpipe amplifies your driving experience with motorsport-inspired sound.

Superior Stainless Steel Construction
Made from high-quality 304 stainless steel, the Untd. Performance Catless Downpipe is built to withstand high temperatures, corrosive exhaust gases, and the demanding conditions of high-performance driving. This material offers superior resistance to rust and wear, ensuring long-term durability and reliability.

Improved Turbo Performance
By improving exhaust flow and reducing backpressure, this downpipe allows your turbochargers to spool more efficiently, reducing lag and improving overall engine performance. Expect faster throttle response, better low-end torque, and more power across the entire RPM range, ideal for both street performance and track use.

Track-Ready Design
Purpose-built for high-performance driving, this downpipe is perfect for enthusiasts looking to extract every ounce of power from their BMW M5 or M8. With a focus on performance, it is well-suited for track applications, dyno tuning, and racing, where emissions compliance is not required.

Compatibility:

• BMW M5 F90 (2017-2021)

• BMW M8 F91/F92/F93 (2017-2021)

• Engine: S63 4.4L V8 Twin-Turbo

• Chassis: F90/F91/F92/F93

Note: This downpipe is designed for the S63 Style 2 engine and is not compatible with other engine variants.

Benefits:

• Substantial power gains: Increased horsepower, torque, and throttle response with reduced turbo lag.

• Aggressive exhaust tone: Amplified exhaust sound with pronounced turbo spool and crackles.

• Durable, high-quality construction: Made from 304 stainless steel for long-lasting durability and resistance to corrosion.

• Improved turbo performance: Faster turbo spool and more efficient power delivery across the entire RPM range.

• Track-ready design: Ideal for racing, dyno tuning, and off-road use where emissions compliance is not required.

Note: This product is intended for off-road and track use only. It is not emissions-compliant in all regions. Please check local regulations before installation.