CAP Can Auto Performance Audi 3.0T Catted Downpipe - B9/B9.5 2018-2025 Audi S4/S5

Heatshield Catted B9 S4/S5 Downpipe: In Stock & Ready to Ship!

*FREE SHIPPING TO LOWER 48 USA!*

Introducing the Canadian Auto Performance high flow cat downpipe! Newly released for 2024, we have redesigned our V1 downpipe from the ground up to maximize the diameter as well as make it look more aesthetically pleasing! You will not be disappointed with, in our opinion, the best looking and the best flowing downpipe on the market today. 

It's time to increase your B9 Audi S4/S5's power, by increasing exhaust flow.

Experience increased horsepower, faster turbo response, and a meaner exhaust note. Easy to install and built to last your car's lifetime.

We have to thank Audi for the design of the OEM cat, compared to the B8/B8.5 S4/S5 platform, replacing cats was a total nightmare on those cars. Although professional install is always recommended, the install time of this downpipe generally only takes around the 2 hour mark.

Key Features Of Our 3.0T Downpipe For B9/B9.5 Platform:

• 100% TIG welded & back purged
• Constructed of top quality 304 Stainless Steel
• Precision CNC machined flanges
• Bolt-on installation
• Faster turbo spool up & better throttle response
  
• Improved exhaust note & exhaust flow
• Increased HP and torque
• No drone with factory exhaust
• The best aesthetically pleasing downpipe on the market!
• Install hardware, gaskets & bolts - included!

The removal of factory catalytic converters will trigger a check engine light. Software tunes are recommended to maximize the power gains.

Important Notice:
This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles. By purchasing this product you acknowledge its intended use and represent that you understand and agree that the product is not designed to meet any applicable emissions standards, the product is not C.A.R.B. complaint. Canadian Auto Performance makes no representations, warranties or claims that this product complies with any applicable emissions laws and expressly disclaims any and all such representations, warranties and claims, whether express or implied. By purchasing this product, you represent, warrant and agree that it is your responsibility to inform yourself of any laws or regulations that may apply to your purchase and/or use of the product.