Valvetronic Exhaust B9 S4 S5

PHP Valvetronic Cat-Back Exhaust System

Compatible With:

• Audi S4 B9/B9.5 (2017–2023)

• Audi S5 B9/B9.5 Coupe & Sportback (2017–2023)

Engine: 3.0L Turbocharged V6 (EA839)
Estimated Power Gains: +12–18 HP / +15–22 lb-ft Torque

Unlock the perfect blend of performance and daily drivability with the PHP Valvetronic Cat-Back Exhaust for Audi B9 S4 and S5 models. This system is designed to optimize flow, reduce backpressure, and let your engine breathe freely — all while giving you control over the sound with an integrated valve system.

Features:

• Valvetronic Control: Switch between a quiet comfort mode and an aggressive sport tone

• 304 Stainless Steel Construction: Durable, corrosion-resistant, and performance-tuned

• Mandrel-Bent Piping: Smooth airflow for improved throttle response

• Bolt-On Design: Easy installation using factory mounting points

• 3 year warranty 

• Custom Exhaust Tips Available: Choose from multiple finishes (available at checkout)

Fitment: Select your exact model during checkout to ensure proper fit.
If you have any questions, feel free to reach out through our contact portal.