SLE Audi S4 S5 B9 (3.0T) 2018+ Downpipe

SLE Audi S4 & S5 B9 (3.0T) 2017+ Downpipe

SLE Audi S4 / S5 B9 (3.0T) 2017+ Catless Downpipe
Increases Power and Torque | Massive 6.5" Design | Faster Turbo Spool | Improved Exhaust Note | Fits OEM and Aftermarket Midpipes | Supports Hybrid Turbos

Overview
Unlock the full potential of your Audi 3.0T EA839 with the SLE Catless Downpipe — one of the best upgrades for your B9 S4 or S5. By replacing the restrictive factory downpipe, this upgrade improves exhaust flow directly from the turbocharger. The result? Faster spool, better throttle response, and noticeable gains in horsepower and torque. Pair it with midpipes for an even more aggressive and refined exhaust tone.

Performance Benefits
The OEM downpipe features a highly restrictive 800-cell catalytic converter that chokes airflow. The SLE Downpipe eliminates this bottleneck, allowing your engine to breathe freely and produce more power. Whether you're running stock or upgraded hybrid turbos, this downpipe is designed to support your build.

Designed for Perfect Fitment
Featuring a massive 6.5" design at the turbo outlet, the Y-section transitions smoothly to meet the OEM or aftermarket midpipes. Precision-cut flanges ensure an easy and secure installation. Compatible with both OEM B9 midpipes and aftermarket midpipes, this downpipe delivers flexibility while enhancing sound and performance.

Vehicle Fitment

• Audi B9 / B9.5 S4 (3.0T EA839)

• Audi B9 / B9.5 S5 Coupe (3.0T EA839)

• Audi B9 / B9.5 S5 Sportback (3.0T EA839)