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Keep your Stingray's rear exhaust with a catted header upgrade
This Kooks Performance-catted X-pipe joins the long tube headers on your naturally aspirated LT1 Corvette to the factory-style rear exhaust. It includes the 3" to 2-3/4" mid-pipes, giving you the crossover and OEM rear transition together.
SKU: 21703200
The crossover and rear transition
The stainless assembly uses 3" front pipework and 2-3/4" OEM-style rear outlets. Matching Kooks headers are required at the front.
Choose for your naturally aspirated LT1
The supplied Performance cats suit naturally aspirated use. If you are adding forced induction, select a catalyst arrangement made for that engine setup.
Fitting your exhaust
The mid-pipe clamp studs may need trimming for belly-pan clearance to prevent contact and rattling during use.
Matching products
For your 2014-2019 naturally aspirated LT1, add the C7 LT1 long tube headers with the matching 3-inch collector interface.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2014-2019 | Chevrolet Corvette Stingray | 6.2L V8 | 21703200 | |
| 2014-2016 | Chevrolet Corvette Z51 | 6.2L V8 | 21703200 | |
| 2017-2019 | Chevrolet Corvette Grand Sport | 6.2L V8 | 21703200 |
Intended use
21703200: Competition, off-road and track use only. Not for use on public roads.
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 |
|---|---|
| SKU | 21703200 |
| Application | 2014-2019 Corvette C7 6.2L LT1 |
| Material | 304 stainless steel |
| Crossover | X-pipe |
| Front / rear outlet | 3" / 2-3/4" OEM |
| Contents | Catted X-pipe and 3" to 2-3/4" mid-pipes |
| Catalyst condition | Performance; naturally aspirated only |
| Belly-pan clearance | Mid-pipe clamp studs may need trimming to prevent contact and rattling |
| Configuration | 21703200; Merge Style: X Pipe; Cats: Performance Cats |
Frequently asked questions
Are the rear transition pipes included?
Yes. The 3" to 2-3/4" mid-pipes are included.
Does it fit the original exhaust manifolds?
The X-pipe requires matching Kooks headers.
