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Exhaust› Headers, Manifolds and Components

DNA Motoring

Exhaust Header Gasket

Name: Exhaust Header Gasket
Brand: DNA Motoring
SKU: HDS-CB05

$110.00 $106.70 Save $3.30

SKU: HDS-CB05

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Overview

The J2 Engineering exhaust header gasket is designed to create a sealed combustion barrier between your header and cylinder head. It handles thermal cycling and pressure cycles to resist blow-by and exhaust leaks at the header flange.

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The J2 Engineering exhaust header gasket is engineered to provide a sealed combustion barrier between your header and cylinder head. This gasket is constructed to withstand the demanding thermal cycling and pressure cycles inherent in exhaust systems, actively resisting blow-by and exhaust leaks at the header flange without premature breakdown. Featuring a heat-resistant core, this gasket is built to endure sustained high temperatures from the exhaust manifold without warping or leaking. Its precision flange fit ensures it seats flush against the cylinder head, preventing gaps or misalignment issues that could lead to leaks. As a single gasket design, it serves as a direct replacement for OEM applications on compatible vehicles. This gasket is specifically designed for the 2005–2010 Chevrolet Cobalt and HHR platforms with 2.2L and 2.4L non-turbo inline-4 engines. It is crucial to note that this gasket does not fit the Cobalt 2.0L supercharged models and will not fit vehicles equipped with an EGR port on stock manifolds. For optimal performance and sealing, it is recommended to scrape off all old gasket material and carbon buildup from both the header and cylinder head flanges before installation, ensuring a clean and flat surface.

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

Brand	DNA Motoring
Part Number	HDS-CB05
Category	Exhaust

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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.

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