CTS Turbo has done it once again, we made the perfect cast stainless steel downpipes for the C7 4.0T platform.
The CTS Turbo Cast Race Downpipe set for 4.0T Audi C7 (S6/S7/RS7) is a bolt on solution for increased performance. Our downpipe set eliminates the OEM cross over and includes the necessary harness extensions for the O2 sensors.
CAD engineered cast stainless steel collector provides unrestricted flow and 3" piping runs all the way back to the exhaust connection.
- Cast stainless steel collectors
- 3" Stainless pipes with sleeve clamps for easy install and maximum exhaust flow
- Heat shielding to keep the temperatures down
- Taper to OE fitment for direct fitment to factory or aftermarket catback systems
- TIG welded
- Reduce exhaust flow restriction
- Includes O2 Sensor Harness extensions
- Includes installation hardware (downpipe gaskets not included)
We recommend purchasing new OEM gaskets for headache-free installation (part number
4G0253115D, 2 required)
Stage 2 software tuning is required to remove the CEL, check with your software tuner.
Race use only! Not legal for use on public roads.
Fitment:
- 2013 - 2018 C7/C7.5 Audi S6 4.0T
- 2013 - 2018 C7/C7.5 Audi S7 4.0T
- 2014 - 2018 C7/C7.5 Audi RS7 4.0T
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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