C7 Corvette Grand Sport American Racing Headers 2 inch (2017-2019)

C7 Corvette Grand Sport 2" American Racing Headers Long Tube Header System (2017–2019)

For 2017–2019 C7 Corvette Grand Sport owners running the 6.2L LT1, the American Racing Headers (ARH) 2-inch long tube header system is designed for high-flow combinations that want maximum header capacity with a complete header-and-midpipe layout that runs back to the rear axle exhaust connection point.

Choose Your Version

• With Cats (C7-14200300LSWC): 2" long tubes + catted 3" X-pipe + 3" connection pipes
• No Cats (C7-14200300LSNC): 2" long tubes + off-road 3" X-pipe + 3" connection pipes

ARH 2" Long Tube Header System – Product Details

• One-piece long tube header design with optimized routing for the C7 chassis
• Merge collectors with scavenger spikes for strong exhaust scavenging
• Includes an X-pipe midsection and connection pipes that run to the rear axle exhaust connection point
• Designed to mate to stock or aftermarket axle-back exhaust systems
• Built in the USA and backed by a lifetime warranty

Benefits

• Maximum airflow capability compared to smaller primary header options
• More aggressive exhaust character under throttle and wide-open acceleration
• Complete flow path: headers + X-pipe + connection pipes to the axle-back interface
• Premium stainless construction designed for repeated heat cycles

What to Expect After Installation
Expect a louder cold start, a deeper and sharper tone under load, and a more responsive feel as the exhaust path opens up. The 2" primary option is typically chosen when the goal is airflow capacity for aggressive street/track combinations.

Technical Specifications

• Header style: Long tube, one-piece
• Primary tube diameter: 2.00"
• Collector diameter: 3.00"
• Collector type: Merge collector with scavenger spikes
• Collector attachment: Ball-and-socket flange
• Crossover pipe style: X-pipe
• Crossover pipe diameter: 3.00"
• Material: 304 stainless steel
• Primary tube gauge: 18-gauge
• Flange thickness: 3/8"
• Catted option: Severe Duty 300-cell catalytic converters (optional 400-cell G-Sport upgrade)
• Set type: Sold as a pair

What’s Included

• 2" long tube headers (pair)
• 3" X-pipe midsection (catted or off-road configuration based on option selected)
• 3" connection pipes to the rear axle / axle-back interface
• O2 sensor extension wires
• Install hardware and gaskets
• Band clamps (where applicable)

Installation Overview
This is an advanced install. Plan on lift access, proper O2 sensor tools, and careful alignment for leak-free sealing and correct underbody clearance. Final re-check after heat cycling is recommended.

Corvette Compatibility

• Fits: 2017–2019 Chevrolet Corvette C7 Grand Sport (6.2L LT1)
• Transmission: Manual and Automatic
• Body style: Coupe and Convertible

Compliance & Warranty
Performance headers may not be legal for public-road use in all areas—verify local emissions requirements before purchase. Lifetime warranty coverage applies per manufacturer terms.

What Customers Say

• Excellent weld quality and a true premium feel out of the box
• A deeper, more aggressive sound that’s most noticeable under load
• Best results when the exhaust system is planned as a full flow path (headers to axle-back)
• Catted vs catless choice usually comes down to local rules, odor preference, and how aggressive the setup needs to be

Custom Corvette Accessories is enthusiast-run and focused on correct fitment and fast shipping. If you want maximum header airflow for your C7 Grand Sport, this ARH 2" long tube header system is a top-tier option.