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Make your Z06 or ZR1 even more rewarding to drive
There is plenty to love about an LS7 Z06 or supercharged LS9 ZR1. A Kooks header-and-X-pipe kit gives you a matched front exhaust upgrade for that engine, with a 3" rear connection for the Z06/ZR1-style exhaust. Choose 1-7/8" or 2" headers, or the 2" Street/Strip package with two front-pipe arrangements.
SKUs: 2161H431, 2161H631, 2161H6SS
Choose the package for your build
2161H431 pairs 1-7/8" headers with a GREEN catted X-pipe. 2161H631 uses 2" headers with GREEN cats. Street/Strip SKU 2161H6SS adds H.O. GREEN cats and a separate set of Competition Only front connections for track-only use. It is a more complete purchase than simply selecting a larger header.
A proper match for the rear exhaust
The GREEN kit outlets connect to the 3" OEM Z06/ZR1-style rear exhaust. Choose the header size around your engine and its modifications rather than assuming the largest tube is always the best choice. The Street/Strip package also includes the gaskets, O2 extension harness, clamps and bolt kit needed for its installation.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 2161H431 | Header Size: 1-7/8"; Cat Type: GREEN Cats | 1-7/8" headers; GREEN catted X-pipe; 3" OEM Z06/ZR1 rear outlet. | Use the SKU-specific vehicle rows below |
| 2161H631 | Header Size: 2"; Cat Type: GREEN Cats | 2" headers; GREEN catted X-pipe; 3" OEM Z06/ZR1 rear outlet. | Use the SKU-specific vehicle rows below |
| 2161H6SS | Header Size: 2"; Cat Type: Street/Strip | 2" headers; H.O. GREEN catted OEM X-pipe plus separate Competition Only front pipes; gaskets, O2 extensions, clamps and bolts included. | Use the SKU-specific vehicle rows below |
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.
Matching products
If you also want a carbon-tip rear upgrade, the C6 Z06/ZR1 axle-back is a separate rear exhaust option for the supported Z06 and ZR1 applications.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2006-2013 | Chevrolet Corvette Z06 | 7.0L V8 | 2161H431, 2161H631, 2161H6SS | |
| 2009-2013 | Chevrolet Corvette ZR1 | 6.2L V8 | 2161H431, 2161H631, 2161H6SS |
Intended use
2161H6SS: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 2161H6SS.
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 | 2161H431, 2161H631, 2161H6SS |
| Applications | 2006-2013 Z06 7.0L LS7; 2009-2013 ZR1 6.2L LS9 |
| Material | 304 stainless steel |
| Primary choices | 1-7/8" or 2" |
| Collector/rear interface | 3" collectors; 3" OEM Z06/ZR1-style rear connection |
| Street/Strip cats | 4-1/2"-bodied H.O. GREEN; 300-cell substrate |
| Street/Strip extras | Competition Only front pipes; gaskets, O2 extension harness, clamps and bolt kit |
Frequently asked questions
What makes Street/Strip different?
It includes a catted H.O. GREEN front arrangement and separate Competition Only pipes that can be swapped in for track-only use.
Will this connect to a standard 2-1/2" C6 rear exhaust?
These kits use the 3" Z06/ZR1-style rear interface. The base C6 kits use a different rear connection.
