APR's cat-back exhaust for the C8 RS6 and RS7 is a complete catalyst-back system, including downpipes, built from T304 stainless steel with mandrel-bent brushed piping and TIG welding throughout. Dual 3in (72mm) paths flow uninterrupted with the valves open, while a smaller 2.5in (63.5mm) closed-valve path and an integrated Helmholtz resonator reduce volume and drone when cruising. Valve-controlled rear mufflers adjust sound to driving style, and APR measures gains of 9 HP and 16 ft-lbs at all four wheels. Quad exits feed dual 8.23x4.76in RS-style diamond black oval tips with an APR logo.
Specifications
| Type | Catalyst-back exhaust system, valved (includes downpipes) |
| Material | T304 stainless steel |
| Finish | Brushed, with 8.23x4.76in diamond black oval tips |
| Quantity | 1 |
| Part Number | CBK0050 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023 | Audi | RS6 Avant | Base |
| 2025 | Audi | RS6 Avant | GT |
| 2024-2026 | Audi | RS6 Avant | Performance |
| 2021-2023 | Audi | RS7 Sportback | Base |
| 2024-2026 | Audi | RS7 Sportback | Performance |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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