Product Description:
Hawks Motorsports is pleased to offer our clients the 2016-2019 Cadillac CTS-V LT4 6.2L 1-7/8" x 3" Stainless Steel Long Tube Headers & GREEN Catted OEM Connection Pipes, Kooks 2312H430. This complete Kooks header and connection-pipe package is designed specifically for the supercharged 6.2L LT4-powered Cadillac CTS-V. The kit combines 1-7/8" stainless steel long tube headers with 3" GREEN catted connection pipes featuring a 2-3/4" OEM-sized outlet for connection to the factory exhaust.
When you're building an LT4 CTS-V, the goal isn't just to make the exhaust louder—it's to give that supercharged 6.2L the room it needs to move exhaust efficiently. These 1-7/8" long tubes feed into 3" collectors and the included GREEN catted connection pipes, giving the CTS-V a serious exhaust upgrade while maintaining an OEM-sized connection at the rear. It's a well-matched combination for a performance-minded build that still wants to work with the factory exhaust system.
The headers are constructed from 304 stainless steel with 1-7/8" mandrel-bent primary tubes, 3/8"-thick laser-cut flanges, oval ports and 3" collector outlets. Kooks uses the stock bolt pattern, and the collectors utilize Torca swivel-seal style connections.
The included connection pipes are 3" x 2-3/4" OEM GREEN catted stainless steel connection pipes. The GREEN catalytic converters are designed for high-performance applications and use an increased concentration of precious metals to support catalytic function under higher exhaust temperatures.
The system is designed to work with the factory rear exhaust, but the factory exhaust must be cut for installation. Kooks states that no additional parts are required for the complete 2312H430 kit.
KEY FEATURES
- Manufacturer: Kooks Headers & Exhaust
- Part Number: 2312H430
- Vehicle: Cadillac CTS-V
- Model Years: 2016-2019
- Engine: 6.2L Supercharged LT4 V8
- Header Type: Long Tube
- Primary Tube Diameter: 1-7/8"
- Collector Diameter: 3"
- Connection Pipe Diameter: 3"
- OEM Connection Outlet: 2-3/4"
- Material: 304 Stainless Steel
- Primary Construction: Mandrel Bent
- Header Flanges: 3/8" Laser Cut
- Port Shape: Oval
- Collector Connection: Torca Swivel-Seal Style
- Catalytic Converters: Kooks GREEN Ultra High Performance
- Connection Pipes: OEM GREEN Catted
- Factory Exhaust: Can be retained after required cutting
- O2 Sensor Extension Harness: Included
- Gaskets: Included
- Bolt Kit: Included
- Clamps: Included
- Additional Parts Required: No, according to Kooks
- Condition: New
PRODUCT SPECIFICATIONS
| Specification | Details |
|---|---|
| Manufacturer | Kooks Headers & Exhaust |
| Part Number | 2312H430 |
| Vehicle | Cadillac CTS-V |
| Years | 2016-2019 |
| Engine | 6.2L Supercharged LT4 V8 |
| Header Type | Long Tube |
| Primary Diameter | 1-7/8" |
| Collector Diameter | 3" |
| Connection Pipe Diameter | 3" |
| OEM Outlet Diameter | 2-3/4" |
| Material | 304 Stainless Steel |
| Primary Construction | Mandrel Bent |
| Flange Thickness | 3/8" |
| Port Shape | Oval |
| Catalytic Converters | GREEN Catted |
| Factory Exhaust | Compatible after cutting |
| Factory Exhaust Cutting | Required |
| O2 Extensions | Included |
| Gaskets | Included |
| Hardware | Included |
| Clamps | Included |
VEHICLE FITMENT / FITS THE FOLLOWING MODELS
2016 Cadillac CTS-V
- 6.2L Supercharged LT4 V8
2017 Cadillac CTS-V
- 6.2L Supercharged LT4 V8
2018 Cadillac CTS-V
- 6.2L Supercharged LT4 V8
2019 Cadillac CTS-V
- 6.2L Supercharged LT4 V8
Kooks' current application data confirms 2016-2019 Cadillac CTS-V with the LT4 6.2L V8.
IMPORTANT APPLICATION NOTES AND EXCLUSIONS
Factory Exhaust Must Be Cut
The factory exhaust must be cut to install the 2312H430 system. This should be considered before ordering.
OEM Exhaust Connection
The included connection pipes feature a 2-3/4" OEM-sized outlet intended for connection to the factory exhaust. The OEM-sized outlet does not mean the factory exhaust installs without modification; cutting is required.
GREEN Catalytic Converters
The kit includes Kooks GREEN catted connection pipes. Kooks describes the GREEN catalyst as having additional precious-metal content intended to support catalytic conversion in newer vehicle exhaust systems and higher-temperature performance applications.
Long Tube Header Requirement
The 2312H430 is a complete header and connection-pipe package. The standalone Kooks 1-7/8" headers use a 3" collector and are designed around Kooks connection-pipe systems rather than connecting directly to the OEM exhaust.
California / CARB
Current Kooks and retailer information indicates this product is not legal for sale, installation or use on a licensed vehicle in California and is not CARB compliant.
INSTALLATION NOTES
- Verify the vehicle is a 2016-2019 Cadillac CTS-V equipped with the LT4 6.2L V8.
- The factory exhaust must be cut for installation.
- Verify header-to-connection-pipe alignment before final tightening.
- The headers use the stock bolt pattern.
- The headers use 3" collector outlets.
- The connection pipes transition to a 2-3/4" OEM-sized outlet.
- O2 sensor extension harnesses are included.
- Gaskets, bolt hardware and clamps are included.
- Kooks states that no additional parts are required for the complete kit.
- Check exhaust clearances before final tightening.
- Inspect all connections for exhaust leaks after installation.
- Follow the current Kooks installation instructions.
FREQUENTLY ASKED QUESTIONS
What vehicles does Kooks 2312H430 fit?
The 2312H430 fits the 2016-2019 Cadillac CTS-V equipped with the 6.2L supercharged LT4 V8.
What size are the headers?
The headers use 1-7/8" primary tubes and 3" collectors.
What size are the connection pipes?
The connection pipes use 3" tubing with a 2-3/4" OEM-sized outlet.
What are the headers made from?
The headers are constructed from 304 stainless steel.
Does this kit include catalytic converters?
Yes. The connection pipes include Kooks GREEN catalytic converters.
Can the factory exhaust be retained?
Yes. The connection pipes feature an OEM-sized outlet for the factory exhaust. However, the factory exhaust must be cut during installation.
Does the factory exhaust need to be cut?
Yes. Kooks specifically identifies cutting the stock/factory exhaust as an installation requirement.
Are O2 sensor extensions included?
Yes. The Kooks header configuration includes the required oxygen-sensor extension harness.
Are gaskets and hardware included?
Yes. The associated Kooks 1-7/8" header configuration includes gaskets, bolt hardware and Torca clamps.
Are additional parts required?
Kooks states that no additional parts are required for the complete 2312H430 kit.
Is the 2312H430 legal in California?
No. Current listings identify the product as not CARB compliant and not legal for sale, installation or use on licensed vehicles in California.
***Kooks is a built to order manufacturer and their focus is providing the best quality parts available. While their typical lead time is 4-6 weeks, some products may take up to 12 weeks to produce.***
