C5 Corvette Z06 American Racing Headers 1-7/8 inch (2001-2004)

C5 Corvette Z06 ARH 1-7/8" Long Tube Headers with X-Pipe (2001–2004)

For 2001–2004 C5 Corvette Z06 owners, the American Racing Headers (ARH) 1-7/8" Long Tube Header System replaces the factory manifolds and mid-pipe section with a freer-flowing header + X-pipe layout that connects at the rear axle connection point and then mates to your rear exhaust.

ARH C5 Z06 1-7/8" Long Tube Header System – Product Details

• 1-7/8" primary tubes into 3" merge collectors with scavenger spikes for efficient exhaust evacuation
• Catted X-pipe or catless (off-road) X-pipe options
• 304 stainless steel construction with hand-ported TIG welded inlets
• 3/8" thick laser-cut flanges for a warp-free seal
• Optimized primary tube routing for strong fit and clearance
• Includes O2 extension harnesses (required to complete the install)

Why American Racing Headers (ARH)

• Made entirely from 304 stainless steel with precision fabrication
• Merge collectors + scavenger spikes built into the design
• Severe-duty high-flow catalytic converter option (catted configuration)
• Built in the USA and backed by a lifetime warranty

Benefits

• Improves exhaust efficiency for stronger acceleration feel and sharper throttle response
• More aggressive tone under load compared to stock manifolds
• Gives you a clean foundation to build a full exhaust system around headers + X-pipe
• Catted option is typically chosen to reduce raw fuel odor vs. catless setups

What to Expect After Installation
Expect a noticeably louder, more performance-oriented tone and a quicker-revving feel, especially once the car is properly calibrated. Catted systems generally sound cleaner and control odor better than catless systems.

Technical Specifications

• Header type: Long tube header system
• Primary tube diameter: 1-7/8"
• Collector size: 3" merge collectors
• Collector technology: Scavenger spikes
• X-pipe: Included (catted or catless option)
• Material: 304 stainless steel
• Flange thickness: 3/8" laser-cut
• Build: Hand-ported TIG welded inlets
• Warranty: Limited lifetime warranty

What’s Included

• Long tube headers (pair)
• X-pipe midsection (catted or catless depending on selection)
• O2 extension harnesses (required to complete the install)
• Install hardware and gaskets
• Band clamps included where applicable

Installation Overview
This is an intermediate-to-advanced install. Plan for extra time if working on jack stands. Good heat management (plug wire protection and routing) matters with any long tube header install. A proper ECU calibration is required after installation for best results.

Corvette Compatibility

• Fits: 2001–2004 Chevrolet Corvette C5 Z06 (LS6)

What Customers Say

• Owners commonly mention strong build quality, solid fitment, and a big change in sound character once installed.
• Many recommend choosing catted setups for a more street-friendly experience versus the smell/harshness that can come with catless systems.
• Heat management and install planning (tools, access, and time) are recurring themes for a smooth install.

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

If you want a proven long tube header + X-pipe foundation for your C5 Corvette Z06, the ARH 1-7/8" Long Tube Header System is a premium path to better flow, stronger response, and a more aggressive tone.