Exhaust› Headers, Manifolds and Components

American Racing

1-3/4" Long Tube Headers w/ 3" X-Pipe

$2,711.14

SKU: C4-84134300LSNC

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The American Racing Headers C4 Corvette Headers are a long system designed for C4 Corvettes from 1984-1991. These headers are made entirely of 304 stainless steel and are manufactured in the USA.
Show original supplier description
The American Racing Headers C4 Corvette long tube header system is engineered to meet the demands of C4 Corvette owners seeking enhanced performance. Manufactured entirely in the USA from 100% US-made 304 stainless steel, this system boasts 3/8" thick laser-cut flanges for a warp-free seal and hand-ported TIG welded inlets for optimal flow. The merge collectors feature scavenger spikes, and the primary tubes are available in either 1-3/4" or a stepped 1-3/4" X 1-7/8" configuration. The system includes a 3" X-Pipe, with options for 200-cell metallic substrate catalytic converters known for their extreme durability. Installation of this system requires an OEM GM LT1 Oil filter adapter; without it, the headers will not fit. Buyers must specify the exact model year, whether the vehicle has EGR, if it's a coupe or convertible, and the transmission type (manual or automatic) at checkout to ensure proper fitment. It is critical to note that all American Racing Headers products are manufactured exclusively for racing purposes. Installing these products on a vehicle eliminates its legal use on public roads and highways and may be subject to fines and/or criminal liability under the Clean Air Act. This system is intended strictly for closed-course competition use and is not legal for street vehicles or other non-racing competition off-road vehicles. A Vehicle Compliance Waiver must be signed prior to purchase.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAmerican Racing
Part NumberC4-84134300LSNC
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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