C5 Corvette Z06 American Racing Headers 1-3-4 inch long tube headers

American Racing Headers C5 Corvette Z06 header install kit with O2 extensions gaskets bolts and clamps

Made in the USA - American Racing Headers

American Racing Headers

C5 Corvette Z06 American Racing Headers 1-3/4 inch (2001-2004)

C5-04134300LSNC

$2,429.99 $2,199.37 Save $230.62

Built to order - Ships in 4-6 weeks

Cats

Without Cats

With Cats

Emissions

Without Emissions Fittings

With Emissions Fitting

Year

2004

2001-2003

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C5 Corvette Z06 American Racing Headers 1-3/4" (2001-2004)

The American Racing Headers 1-3/4" Long Tube Header System is engineered for the 2001–2004 C5 Corvette Z06 and its high-revving LS6 V8. This complete long tube system replaces the factory manifolds and restrictive mid-section with a performance-optimized exhaust path that improves exhaust scavenging, throttle response, and overall engine efficiency.

The system runs from the cylinder heads to the rear axle connection point, where it mates to the OEM or aftermarket over-axle / axle-back exhaust. The included 3" X-pipe mid-section helps balance exhaust pulses while maintaining strong mid-range and top-end power delivery.

Part Numbers

2001–2003 With Cats: C5-01134300LSWC
2001–2003 Without Cats: C5-01134300LSNC
2004 With Cats: C5-04134300LSWC
2004 Without Cats: C5-04134300LSNC

Why Choose American Racing Headers

1-3/4" primary tubes optimized for LS6 airflow
3" merge collectors with scavenger spikes
3" X-pipe mid-section for improved exhaust balance
304 stainless steel construction
3/8" laser-cut flanges for a durable seal
Designed specifically for the C5 Corvette chassis
Made in the USA

Technical Specifications

Header type: Long tube header system
Primary size: 1-3/4"
Collector size: 3"
Collector design: Merge collectors with scavenger spikes
Mid-section: 3" X-pipe (catted or catless)
Rear connection: Designed to connect at the rear axle point
Flange reduction: Neck-down to 2.5" to mate to OEM or aftermarket over-axle flange
Catted version: High-flow metallic catalytic converters
Material: 304 stainless steel
Flange thickness: 3/8"

What's Included

1-3/4" long tube headers (pair)
X-pipe mid-section
O2 extension harnesses
Exhaust gaskets
Installation hardware
Band clamps

Corvette Compatibility

C5 Corvette Z06 – 2001, 2002, 2003, 2004
Engine: LS6 5.7L V8

What Customers Say

“Perfect fit on my 2002 Z06. Throttle response improved and the sound is exactly what I wanted.”

Custom Corvette Accessories has been serving Corvette enthusiasts since 2007 with premium parts, expert support, and dependable shipping.

Vehicle Fitment & Specifications

Generation:	C5
Model Years:	2001 - 2004
Trim Level:	Z06
Engine Code:	LS6
Transmission Type:	Manual
Intended Use:	Street

Installation Instructions

Download PDF Installation Instructions

Back to Corvette American Racing Headers

Frequently Asked Questions

Do these headers fit all C5 Corvette Z06 models?

Yes. This system fits 2001–2004 C5 Corvette Z06 models equipped with the LS6 engine.

Where does the exhaust connect after the X-pipe?

The system connects at the rear axle connection point and mates to the factory or aftermarket axle-back exhaust.

Are O2 extensions included?

Yes. O2 extension harnesses are included and required for installation.

Do these headers require a tune?

A performance tune is recommended after installing long tube headers to optimize engine performance.

What size collectors are used?

The system uses 3" merge collectors with scavenger spikes to improve exhaust flow.