Details
Product Information
Corsa's Xtreme cat-back is a valved 3.0 in system in 304 stainless steel tuned for the CT5-V 3.0L Turbo. It plugs directly into the factory dual mode active exhaust module, so the stock drive modes still open and close the valves and swing the car between quiet and loud, over 5 dB above stock at full song. A 3.0 in double X-pipe replaces the restrictive crushed factory piping near the rear axle to raise flow about 10 percent, and Corsa's Reflective Sound Cancellation technology keeps the cabin drone free in every mode. Dual wall 4.5 in black PVD twin tips finish the system. Backed by a Limited Lifetime exhaust warranty with 5 years on the valves.
Specifications
| Type | Cat-back exhaust, Xtreme, valved (dual rear exit) |
| Material | 304 stainless steel |
| Diameter | 3.0 in (double X-pipe) |
| Tips | 4.5 in black PVD, dual wall, twin |
| Valve | Integrates with factory active exhaust module |
| Technology | Reflective Sound Cancellation (RSC), no drone |
| Sound | Over 5 dB louder than stock |
| Finish | Black |
| Warranty | Limited Lifetime exhaust, 5 year valves |
| Part Number | 21326BLK |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2025 | Cadillac | CT5-V | 3.0L Turbo |
Shipping
- In stock orders typically 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





