Product Description:
Hawks Motorsports is pleased to offer our clients the following 2014-2019 Chevrolet Corvette C7 6.2L 1-7/8" x 3" Stainless Steel Long Tube Headers by Kooks, part number 21702400.
A C7 with a healthy LT motor deserves an exhaust system that can actually move some air. These 1-7/8-inch Kooks long tubes hit a sweet spot for serious naturally aspirated or boosted combinations, giving the engine a larger path out of the cylinder heads while feeding into a full 3-inch collector. When you're dialing in the rest of the combination, headers are one of those upgrades that can completely change the character of the exhaust side of the build.
Kooks part number 21702400 features 1-7/8-inch primary tubes, 3-inch collectors, and 304 stainless steel construction. Current manufacturer information identifies these headers for 2014-2019 Chevrolet Corvette C7 all trims with LT1, LT4, or LT5 6.2L engines. The headers do not connect directly to the OEM exhaust and require a compatible Kooks X-pipe.
KEY FEATURES
- Kooks part number 21702400
- 1-7/8" x 3" stainless steel long tube headers
- Designed for applicable 2014-2019 Chevrolet Corvette C7 models
- Current manufacturer application includes LT1, LT4, and LT5 6.2L engines
- 304 stainless steel construction
- 1.875-inch primary tube diameter
- 3-inch collector outlet
- Requires a compatible Kooks X-pipe
- Does not connect directly to the OEM exhaust
- Includes manufacturer-specified gaskets, O2 extensions, clamps, and header bolts
PRODUCT SPECIFICATIONS
| Specification | Details |
|---|---|
| Manufacturer | Kooks Headers & Exhaust |
| Part Number | 21702400 |
| Product Type | Long Tube Headers |
| Vehicle Platform | Chevrolet Corvette C7 |
| Engine Applications | LT1, LT4, LT5 6.2L |
| Material | 304 Stainless Steel |
| Primary Tube Diameter | 1.875 in. |
| Collector Outlet | 3.000 in. |
| Exhaust Connection | Compatible Kooks X-pipe required |
| Direct OEM Exhaust Connection | No |
| Shipping Weight | 30 lbs. |
| Shipping Dimensions | 18" L x 12" W x 18" H — package dimensions listed by retailer |
Manufacturer specifications confirm the 304 stainless construction and 1.875-inch tube diameter.
VEHICLE FITMENT / FITS THE FOLLOWING MODELS
2014-2019 Chevrolet Corvette C7 — 6.2L
Current Kooks application information identifies:
- 2014-2019 Chevrolet Corvette Stingray — 6.2L LT1
- 2014-2016 Chevrolet Corvette Z51 — 6.2L LT1
- 2015-2019 Chevrolet Corvette Z06 — 6.2L LT4
- 2017-2019 Chevrolet Corvette Grand Sport — 6.2L
- 2019 Chevrolet Corvette ZR1 — 6.2L LT5
The current manufacturer description identifies part number 21702400 for 2014-2019 Corvette C7, all trims, LT1/LT4/LT5 6.2L.
IMPORTANT APPLICATION NOTES AND EXCLUSIONS
Requires a Compatible Kooks X-Pipe
These headers do not connect directly to the OEM exhaust. Kooks specifies that use of the headers requires a compatible Kooks X-pipe.
Current Fitment Is More Specific Than “2014+”
The supplied product name uses 2014+, but current manufacturer information identifies the verified application range as 2014-2019 Chevrolet Corvette C7.
Verify the Exact Engine and Trim
Current manufacturer information includes LT1, LT4, and LT5 6.2L C7 applications. Customers should confirm the exact vehicle configuration before installation.
California and CARB Compliance
Available current product information indicates these headers are not CARB compliant and should not be represented as legal for use on licensed vehicles in California. Customers are responsible for verifying applicable emissions requirements for their intended use and location.
INSTALLATION NOTES
- Confirm the exact year, Corvette trim, and engine configuration before installation.
- These headers require a compatible Kooks X-pipe and do not connect directly to the factory exhaust.
- Follow the current Kooks installation instructions for part number 21702400.
- Verify proper clearance throughout the exhaust system.
- Inspect the completed installation for exhaust leaks.
- Check O2 sensor wiring and routing for proper clearance.
- Reinspect the exhaust system after initial heat cycles.
FREQUENTLY ASKED QUESTIONS
What Corvettes do Kooks 21702400 headers fit?
Kooks currently identifies part number 21702400 for 2014-2019 Chevrolet Corvette C7 models with applicable LT1, LT4, and LT5 6.2L engines.
Will these fit a C7 Z06?
Current manufacturer fitment includes the 2015-2019 Chevrolet Corvette Z06 with the 6.2L LT4.
Will these fit a C7 ZR1?
The current Kooks description includes the LT5 6.2L within the listed 2014-2019 C7 application. The 2019 ZR1 is included in the manufacturer's current fitment information.
What size are the primary tubes?
Kooks specifies 1-7/8-inch, or 1.875-inch, primary tubes.
What size are the collectors?
These headers use a 3-inch collector outlet.
Do these headers connect directly to the factory exhaust?
No. A compatible Kooks X-pipe is required because these headers do not connect directly to the OEM exhaust.
What material are these headers made from?
Kooks specifies 304 stainless steel construction.
Are these headers CARB compliant?
No CARB compliance should be assumed for this product. Available current retailer information identifies the headers as not meeting CARB compliance.
***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.***
