Exhaust› Headers, Manifolds and Components

Spec-D

4-1 Racing Exhaust Header

$2,613.27

SKU: HH1-INT94LS-DK

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Spec-D Tuning HH1-INT94LS-DK is a 4-1 racing exhaust header designed for the 1994-2001 Acura Integra LS/RS/GS.

It is designed for light weight and includes a port for an O2 sensor.
Show original supplier description
The Spec-D Tuning HH1-INT94LS-DK is a 4-1 racing exhaust header engineered for the 1994-2001 Acura Integra LS, RS, and GS models. Crafted from premium T304 stainless steel, this header boasts a durable, chrome-polished finish and is built with mandrel-bent tubing for optimal exhaust flow. The construction includes CNC-machined flanges and TIG/MIG welded joints, ensuring a robust and lightweight design. Key features include readiness for an O2 sensor insertion. While it aims to increase horsepower, the product does not come with installation instructions. Professional installation is highly recommended to ensure proper fitment and performance. The header is designed as a direct replacement for the stock unit on the specified Acura Integra models.

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

BrandSpec-D
Part NumberHH1-INT94LS-DK
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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