C7 Corvette Stingray American Racing Headers 1-7/8 inch (2014-2019)

C7 Corvette Stingray ARH 1-7/8 Long Tube Headers & 3" X-Pipe (C7-14178300LSWC / C7-14178300LSNC)

The American Racing Headers (ARH) 1-7/8 long tube header system is built for the 2014–2019 C7 Corvette Stingray / Z51 (LT1 6.2L) when you want a true long-tube upgrade with a complete midsection. This setup uses ARH’s long-system layout with a 3" X-pipe and ends at the rear axle so it connects cleanly to stock or aftermarket axle-backs.

ARH C7 Stingray Long System – Product Details

• System layout: Long tube headers + long-system midsection + X-pipe (rear-axle connection point)
• Choose catted or catless: pick the configuration that matches your goals for sound, odor, and compliance needs
• Axle-back friendly: designed to mate to stock or aftermarket axle-backs at the rear axle
• Hardware included: includes O2 Sensor Extensions, install hardware and gaskets; band clamps included where applicable

Catted vs Catless (How to Choose)

• WITH Cats (C7-14178300LSWC): the better choice for most street-driven cars—reduces exhaust odor and keeps the tone cleaner while still improving flow. ARH uses high-flow “Severe Duty” catalyst options on this system.
• NO Cats (C7-14178300LSNC): maximum raw sound and flow—typically louder with more exhaust odor and intended for off-road/racing use.

Why American Racing Headers Leads…

• Built in the USA with premium stainless construction
• Optimized routing for consistent fitment and performance
• Merge collectors with scavenger spikes for strong exhaust scavenging
• Lifetime warranty manufacturer backing

Benefits

• Frees up exhaust flow vs. factory manifolds for stronger performance potential
• Sharper throttle response when paired with the right calibration
• More aggressive exhaust character under throttle
• A strong foundation for future mods (intake, cam, heads, forced induction)

What to Expect After Installation
Expect a noticeably louder cold start and a more aggressive tone under load. This system is designed to work with stock axle-backs (including NPP-style setups) or aftermarket axle-backs, so you can choose how wild the final sound becomes. Tune required: Yes—plan on tuning to optimize drivability and reduce the chance of warning lights after install.

Technical Specifications

• Header primary tube OD: 1-7/8 in.
• Collector OD: 3.00 in.
• Collector attachment: Ball-and-socket flange
• Primary tube gauge: 18-gauge
• Flange thickness: 0.38 in. (3/8 in.)
• X-pipe included: Yes (X-pipe), 3.00 in. diameter
• Catalytic converters (catted version): Yes, qty 2
• Bolts/studs: Included
• Gaskets: Included
• Quantity: Sold as a pair
• Tune required: Yes

Installation Overview
This is a direct bolt-on long-tube system, but it’s still an advanced install compared to axle-backs. A lift is strongly recommended. Plan for typical header-install steps: removing factory manifolds, routing O2 sensors, test-fitting for clearance, tightening in sequence, and checking for heat exposure around nearby wiring/lines. After installation, tuning is required to get the results you want.

Corvette Compatibility

• Fits: 2014–2019 C7 Corvette Stingray / Z51 (6.2L LT1)
• Transmission: Manual and automatic
• Body styles: Coupe and Convertible

Cross-Compatibility & Related Fitment

• If you have a C7 Grand Sport or C7 Z06, use the dedicated ARH product page for your trim so your setup is matched correctly.
• If you’re unsure on exact configuration (cats, primary size, axle-back pairing), contact us and we’ll confirm the right system for your build.

Compliance & Warranty

• Emissions: Off-road / racing use (check local requirements before purchase)
• Warranty: Lifetime warranty (manufacturer)

Custom Corvette Accessories is enthusiast-run, focused on correct fitment, fast nationwide shipping, and real-world Corvette ownership support.

If you want a premium long-tube system that’s built to connect cleanly at the rear axle and give your C7 Stingray the airflow foundation it deserves, the ARH 1-7/8 long system is a top-tier choice.