Cornerstone Performance CPS-C7-LTH Long Tube Headers 2014-2019 Chevrolet Corvette C7 6.2L

The CPS-C7-LTH long tube headers from Cornerstone Performance are purpose-built for the 2014 through 2019 Chevrolet Corvette C7, delivering a direct-fit upgrade over the restrictive factory cast iron manifolds. Engineered from T304 stainless steel with CNC mandrel-bent primary tubes measuring 1-7/8 inches in diameter, the CPS-C7-LTH unlocks up to 20 additional horsepower and 15 ft-lbs of torque across the entire RPM range. Compatible with the Stingray LT1, Z06 LT4, Grand Sport, and ZR1 LT5 engines, these headers are a core foundation for any serious C7 Corvette performance build.

These headers feature a 3-inch ID collector with an inlet ball flange, allowing direct bolt-on compatibility with factory and aftermarket X-pipes that use the standard ball flange connection. The precision-mandrel-bent primary tubes eliminate crimps and restrictions at every bend, maintaining full exhaust flow velocity from the cylinder head all the way to the collector. Each set weighs approximately 15 lbs less than the OEM cast manifold, contributing to improved power-to-weight ratio and front-end weight balance on the track.

CPS-C7-LTH Key Features

• 1-7/8 inch diameter T304 stainless steel primary tubes
• CNC mandrel-bent primaries for unrestricted exhaust flow
• 3-inch ID collector with inlet ball flange connection
• Direct bolt-on fitment for 2014 to 2019 Corvette C7 all variants
• Compatible with stock and aftermarket X-pipes using ball flange
• Approximately 15 lbs lighter than factory cast iron manifold
• Up to 20 HP and 15 ft-lbs torque gain
• Covers LT1, LT4, and LT5 6.2L engine variants

Vehicle Fitment

Product Specifications

What's Included

• 1x Left (driver) side long tube header
• 1x Right (passenger) side long tube header
• Gaskets for leak-free cylinder head seal

Installation Notes

The CPS-C7-LTH requires a separate X-pipe or mid-pipe with a matching ball flange connection to complete the exhaust system. These headers do not include catalytic converters and are designed for closed-course competition and off-road use. Professional installation is strongly recommended. Verify clearance with supercharger or aftermarket accessory drives on Z06 LT4 and ZR1 LT5 builds before ordering.

Frequently Asked Questions

What vehicles does the CPS-C7-LTH fit?
This header set fits all 2014, 2015, 2016, 2017, 2018, and 2019 Chevrolet Corvette C7 models, including the Stingray with the LT1, the Z06 with the LT4, the Grand Sport, and the ZR1 with the LT5. All variants carry the 6.2L V8 engine that these headers are designed for.

How much power do these headers add?
The CPS-C7-LTH is rated for gains of up to 20 horsepower and 15 ft-lbs of torque compared to the factory cast iron exhaust manifolds. Actual gains vary based on tune, supporting modifications, and engine variant.

Are these headers street legal?
No. These headers do not include catalytic converters and are not street legal under federal emissions standards or the Clean Air Act. They are intended exclusively for closed-course competition and off-road use.

What X-pipe or mid-pipe is compatible with this set?
The collector uses a 3-inch ID inlet ball flange connection. Any X-pipe or mid-pipe with a matching 3-inch ball flange outlet will bolt directly to the CPS-C7-LTH, including many OEM-style and aftermarket options from leading exhaust manufacturers.

Does this header set work with the Z06 supercharger?
These headers are listed as compatible with the Z06 LT4 engine. However, supercharged engine bays have tighter clearances than naturally aspirated variants. Professional mockup and clearance verification is recommended before installation on any supercharged C7.

What material is used in construction?
These headers are constructed from T304 stainless steel, known for its corrosion resistance, strength at high exhaust temperatures, and clean appearance. The primary tubes are CNC mandrel-bent to preserve full internal diameter through every bend.

How much weight do these headers save over stock?
The complete set weighs approximately 15 lbs less than the factory cast iron exhaust manifolds. This reduction improves the front-to-rear weight balance of the C7 platform and contributes to improved handling characteristics on track.

Does this installation require a tune?
Yes. Long tube headers alter exhaust backpressure and affect air-fuel ratio readings. A custom ECU tune is highly recommended after installing the CPS-C7-LTH to optimize power output and prevent running lean under wide-open throttle conditions.

Does the set include all necessary hardware?
Yes. Each set includes the left and right long tube headers along with gaskets for a leak-free seal at the cylinder head flanges. A separate X-pipe or mid-pipe is required to complete the exhaust system and is not included.

What is the warranty on this product?
Cornerstone Performance does not publish a specific written warranty for the CPS-C7-LTH. Contact Cornerstone Performance directly before purchase to confirm current warranty terms and coverage for your application.

WARNING: This product can expose you to chemicals including nickel compounds and chromium compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.