2017+ Audi S4/S5 Downpipe | B9/B9.5 S4/S5

Description

*Please email us any special requests*

Unlock deeper sound and sharper throttle response with our performance downpipe for the 2017+ Audi S4/S5 (B9/B9.5). Built to handle the power of the 3.0L Turbo V6, this upgrade is a lightweight solution all about maximizing flow and reducing back pressure.

Crafted from high-grade stainless steel, it’s engineered for durability, performance, and fitment - no rattles, just clean bolt-on power. Whether you're stage 1 or stage 2, this downpipe unleashes the true tone and potential of your S4 or S5.

Forget dealer pricing. Our GCA Performance line delivers premium performance parts without the markup.

We Stand Behind Our Products

• All items from us have a 1-Year Warranty! 

Specs

• Fits: 2017 2018 2019 2020 2021 2022 2023 2024 2025 B9 B9.5 Audi S4 S5 3.0L V6 Turbo Engine
• Material: High Quality T304 Stainless Steel
• Precision TIG welds for high strength and perfect fitment
• 100% Reversible, always able to go back to stock at any time
• *Comes with ALL necessary mounting hardware*

Shipping

• FREE SHIPPING to the lower 48 States!
• 5-8 Business Days depending on location
• We ship all of our products through UPS or FedEx
• Current processing time (FOR FRONT RACE PIPES ONLY!) from when you place your Order to the Order being shipped is 5 Business Days

We always recommend Professional Installation. 

Emissions Non-Compliance. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. Its use is prohibited in any motor vehicle that is subject to emissions inspection or control. Legal in California only for racing vehicles that may never be used, or registered or licensed for use, upon a highway. 

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only, never to be driven on public roads. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified (CARB) and not EPA certified. You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.