C7 Corvette Z06 American Racing Headers 1-7/8 inch (2015-2019)

C7 Corvette Z06 1-7/8" American Racing Headers Long System (2015–2019)

For 2015–2019 C7 Corvette Z06 owners, the American Racing Headers 1-7/8" Long Tube Header System upgrades the entire flow path from the factory manifolds to the rear axle connection point, then mates to your axle-back. It’s built to improve exhaust efficiency on the supercharged LT4, sharpen throttle response, and deliver a more aggressive tone under load.

Choose Your Version

• With Cats (C7-14178300LSWC): Long tubes + catted X-pipe + rear connection pipes
• No Cats (C7-14178300LSNC): Long tubes + off-road X-pipe + rear connection pipes

ARH Long System – Product Details

• One-piece long tube header design with optimized routing for the C7 engine bay
• Merge collectors with scavenger spikes for strong exhaust scavenging
• ARH forward-location X-pipe design for a clean, performance-focused flow path
• System ends at the rear axle and is a direct fit to stock or aftermarket axle-back exhaust
• Hand-ported TIG welded inlets and precision fabrication throughout
• Built in the USA and backed by a lifetime warranty

Benefits

• More aggressive exhaust character under throttle and wide-open acceleration
• Cleaner flow path for performance builds (headers → X-pipe → axle-back)
• High-quality stainless construction designed for long-term heat cycles
• Catted option helps reduce raw exhaust odor versus off-road systems

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. This is one of the most noticeable “wake-up” mods on an LT4 Z06 when the rest of the build is designed around airflow.

Technical Specifications

• Primary tube diameter: 1-7/8"
• 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 configuration: Severe Duty 300-cell catalytic converters (optional 400-cell G-Sport upgrade)

What’s Included

• Long tube headers (sold as a pair)
• X-pipe midsection (catted or off-road configuration based on option selected)
• 3.00" rear connection/connector 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: 2015–2019 Chevrolet Corvette C7 Z06 (6.2L LT4)
• Transmission: Manual and Automatic
• Body style: Coupe and Convertible

Compliance & Warranty
Performance headers are commonly intended for racing/off-road use and may not be legal for public-road use. Verify local emissions requirements before purchase. Lifetime warranty coverage applies per manufacturer terms.

What Customers Say

• “Premium” build quality out of the box (welds, flanges, and overall finish)
• Stronger, more aggressive sound under throttle without feeling “thin” or tinny
• Best results when the exhaust system is planned as a full flow path (headers to axle-back)

Custom Corvette Accessories is enthusiast-run, focused on correct fitment and fast shipping. If you want a top-tier long tube header system built specifically for the C7 Z06, this ARH 1-7/8" Long System is a proven upgrade.