Catless Downpipe AUDI B9 S4 S5

Catless Downpipe for AUDI B9 S4 / S5 – Universal Fit

Upgrade your Audi B9 S4 or S5 with the PowerHaus Performance Catless Downpipe, engineered for enthusiasts seeking improved exhaust flow, increased horsepower, and a more aggressive exhaust note. Designed as a universal fit for B9 generation S4 and S5 models (2018-2020), this downpipe replaces the restrictive factory catalytic converter, unlocking your turbocharged engine's full potential.

Features:

• Universal Fit for B9 S4/S5: Precisely crafted to fit all stock configurations of the Audi B9 S4 and S5, ensuring straightforward installation without extensive modifications.

• High-Quality Stainless Steel Construction: Made from durable 304 stainless steel for corrosion resistance and long-lasting performance.

• Improved Exhaust Flow: Eliminates the factory catalytic converter bottleneck to reduce backpressure, resulting in noticeable gains in power and throttle response.

• Enhanced Turbo Efficiency: By improving exhaust scavenging, the downpipe helps your turbo spool faster, boosting both low-end torque and high-end horsepower.

• Aggressive Sound: Experience a deeper, more aggressive exhaust tone that enhances the sporty character of your Audi without drone.

• Direct Bolt-On Installation: Designed for OEM fitment with factory-style flanges and hardware included for a hassle-free upgrade.

• Compatible with Stock and Aftermarket Downstream Components: Works seamlessly with your existing exhaust system or upgraded components.

Performance Gains: On average, expect an increase of 10-15 horsepower and improved turbo spool characteristics when combined with a proper ECU tune.