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Choose revised headers for your C6 exhaust upgrade
These Kooks long tube headers give your LS2 or LS3 C6 a choice of 1-3/4", 1-7/8" or 2" primaries. The revised TORCA Swivel-Seal outlets pair with the matching revised X-pipe, while the detailed fitting pack comes with the headers.
SKUs: 21602201, 21602401, 21602601
Gaskets, clamps and sensor extensions included
Every choice includes a pair of SS-755818 multi-layer stainless gaskets, BK110 bolts, two JI-K61003 Swivel-Seal clamps, the EX682-Z kit for two front and two rear O2 extensions, and the K60015 cooler-line bracket. On dry-sump cars, fitting requires temporarily moving the oil lines for header clearance, with oil drainage and refilling included in the work.
Match the revised X-pipe joint
The 3" TORCA outlets need the corresponding revised Kooks X-pipe. Use the cooler-line bracket where the car has those lines, and choose the exact engine / year connection for your LS2 or LS3.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 21602201 | Header Size: 1-3/4" | 1-3/4" primaries, 3" TORCA outlets; listed fitting pack included. | Revised TORCA X-pipe; engine/year-specific rear connection |
| 21602401 | Header Size: 1-7/8" | 1-7/8" primaries, 3" TORCA outlets; listed fitting pack included. | Revised TORCA X-pipe; engine/year-specific rear connection |
| 21602601 | Header Size: 2" | 2" primaries, 3" TORCA outlets; listed fitting pack included. | Revised TORCA X-pipe; engine/year-specific rear connection |
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Talk to us to discuss the right tuning route for your vehicle.
Matching products
For the 2009-2013 LS3 C6 subset, the later LS3 C6 GREEN X-pipe uses the revised TORCA joint and 2-1/2-inch OEM outlets. The earlier LS2 years need their own exact X-pipe selection.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2005-2007 | Chevrolet Corvette Base | 6.0L V8 | 21602201, 21602401, 21602601 | Revised TORCA X-pipe; engine/year-specific rear connection |
| 2008-2013 | Chevrolet Corvette Base | 6.2L V8 | 21602201, 21602401, 21602601 | Revised TORCA X-pipe; engine/year-specific rear connection |
| 2010-2013 | Chevrolet Corvette Grand Sport | 6.2L V8 | 21602201, 21602401, 21602601 | Revised TORCA X-pipe; engine/year-specific rear connection |
Intended use
21602201, 21602401, 21602601: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 21602201, 21602401, 21602601.
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 | 21602201, 21602401, 21602601 |
| Application | Supported 2005-2013 C6 LS2 6.0L / LS3 6.2L |
| Material | 304 stainless steel |
| Primaries | 21602201: 1-3/4"; 21602401: 1-7/8"; 21602601: 2" |
| Outlets / joint | 3" revised TORCA Swivel-Seal |
| Included | SS-755818 gasket pair; BK110 bolts; 2 JI-K61003 clamps; EX682-Z 2 front / 2 rear extensions; K60015 bracket |
| Required connection | Matching revised Kooks X-pipe, separate |
| Dry-sump cars | Oil lines temporarily moved for header clearance; allow for oil drainage and refilling |
Frequently asked questions
Do all three sizes include the same fitting pack?
The exact pages list the same gasket, bolt, clamp, harness and bracket pack for these three SKUs.
Do these use old two-bolt front joints?
These are the revised TORCA Swivel-Seal headers. Match the X-pipe to that joint.
