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Exhaust› Headers, Manifolds and Components

Spyder Auto

Exhaust Header

$169.99 $113.99 Save $56.00

SKU: TS-HE-HA03-C

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 Spyder Auto exhaust header is a performance upgrade designed for the 2003-2006 Honda Accord 4 Cylinder. This header is engineered to optimize power from 4000 RPM to redline, potentially increasing horsepower by 8-12 HP.
Show original supplier description
The Spyder Auto 4-2-1 exhaust header offers a high-performance, lightweight racing design for the 2003-2006 Honda Accord with a 4-cylinder, 2.4L engine. Constructed from premium T304 stainless steel, it utilizes mandrel-bent tubing and CNC-machined flanges with TIG and MIG welding for durability and optimal flow. This header is designed to enhance power delivery from 4000 RPM to redline without sacrificing low-end torque, with potential horsepower gains of 8-12 HP attributed to the collector design that evens out exhaust pulses. It includes an O2 sensor insert for straightforward integration. Professional installation is recommended for this component.
Vehicle Symptoms
  • Loud exhaust noise under acceleration
  • Check engine light with catalytic converter efficiency code
  • Decreased engine power and throttle response
  • Rattling noise from exhaust manifold area
  • Poor fuel economy on highway
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0300 – Random or multiple cylinder misfire Det
Relevant Conversations
  • 2003 Honda Accord 2.4L exhaust header upgrade
  • P0420 on 2006 Accord 2.4L
  • Spyder Auto header vs Megan Racing
  • How to install header on 7th gen Accord
  • Exhaust leak symptoms Honda Accord
  • Best header for K24 Accord
  • Will aftermarket header cause check engine light?
  • Header install with O2 sensor spacer
  • HP gains from Spyder Auto header
  • Header and catback combo for Accord

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

BrandSpyder Auto
Part NumberTS-HE-HA03-C
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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