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Match the front pipes to the exhaust on your CTS-V
Finish your early CTS-V header upgrade with the connection route your car needs. These Kooks pipes offer OEM-resonator and Corsa cat-back interfaces, so you can choose around the rear exhaust you already have rather than buying the wrong connection.
SKUs: 23103100, 23103150, 23103200, 23103350
OEM resonator or Corsa rear system
23103100 is the uncatted OEM-resonator version, installed by cutting the factory pipework and using the supplied clamps. 23103150 is the uncatted Corsa version. Performance-catted 23103200 joins the factory resonator and includes fitting gaskets and hardware.
The GREEN Corsa choice
23103350 is the GREEN-catted Corsa connection option for the listed LS6/LS2 cars. Choose the rear interface as well as the catalyst type. Performance cats on 23103200 are for naturally aspirated engines.
Stainless steel construction
23103100, 23103150 and 23103200 use 304 stainless steel. 23103350 uses stainless steel.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 23103100 | Cat Type: Comp. Only; Connection Type: OEM | 3" to 2-1/2" uncatted OEM-resonator connections; stock piping cut required; supplied clamps. | Factory pipe cut required; supplied clamps; OEM-resonator route; Uncatted; competition use |
| 23103150 | Cat Type: Comp. Only; Connection Type: Corsa | 3" to 2-1/2" uncatted connections for Corsa cat-back; matching Kooks headers required. | Uncatted; competition use |
| 23103200 | Cat Type: Performance Cats; Connection Type: OEM | 3" to 2-1/2" Performance-catted OEM-resonator connections; gaskets and hardware included; naturally aspirated only. | Naturally aspirated only |
| 23103350 | Cat Type: GREEN Cats; Connection Type: Corsa | 3" GREEN-catted connections for the Corsa cat-back route. | Match the vehicle and engine rows below |
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2004-2005 | Cadillac CTS V | 5.7L V8 | 23103100 | Factory pipe cut required; supplied clamps; OEM-resonator route |
| 2004-2005 | Cadillac CTS V | 5.7L V8 | 23103150, 23103350 | |
| 2004-2005 | Cadillac CTS V | 5.7L V8 | 23103200 | Performance cats: naturally aspirated only |
| 2006-2007 | Cadillac CTS V | 6.0L V8 | 23103100 | Factory pipe cut required; supplied clamps; OEM-resonator route |
| 2006-2007 | Cadillac CTS V | 6.0L V8 | 23103150, 23103350 | |
| 2006-2007 | Cadillac CTS V | 6.0L V8 | 23103200 | Performance cats: naturally aspirated only |
Intended use
23103100, 23103150, 23103200, 23103350: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 23103100, 23103150, 23103350.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKUs | 23103100, 23103150, 23103200, 23103350 |
| Applications | 2004-2007 CTS-V, LS6 5.7L / LS2 6.0L |
| Front pipes | 3" stainless steel |
| 23103100 / 23103150 | Uncatted; OEM-resonator / Corsa route respectively |
| 23103200 | Performance-catted OEM-resonator route; gaskets and hardware included; naturally aspirated only |
| 23103350 | GREEN-catted Corsa connection option |
| 23103100 fitting | Stock pipe cut required; fitting clamps included |
| Material | 23103100, 23103150 and 23103200: 304 stainless steel |
| 23103350 material | Stainless steel |
Frequently asked questions
Which pipes suit a Corsa cat-back?
Choose 23103150 Competition Only or 23103350 GREEN for the Corsa connection route.
What is different about the OEM-resonator route?
It joins the retained factory resonator. The uncatted 23103100 explicitly requires cutting the factory pipework and includes the fitting clamps.
