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Exhaust› Headers, Manifolds and Components

Cobalt

Performance Stainless Steel Header

$550.25 $495.99 Save $54.26

SKU: 910-645

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Cobalt Performance Stainless Steel Header is engineered to provide enhanced power and an improved aesthetic for your 1999-2005 Mazda MX-5 Miata with a manual transmission. This configuration is optimized to improve low to mid-range torque. Installation compatibility is noted with both stock mid-pipes and Cobalt 2.5" mid-pipes (909-960 & 909-962). For 1999-2000 Miata models equipped with an EGR tube, the 903-131 EGR tube is required. Additionally, 1999-2000 California vehicles may require the 903-700 kit or a specific O2 bung placement to prevent a check engine light. The header comes with a 5-year warranty from Moss Miata. Please be aware that this header is not CARB approved and cannot be shipped to addresses in California or Colorado. Buyers should consult installation instructions for detailed guidance.

MIA's Description

The Cobalt Performance Stainless Steel Header is a custom-made exhaust component designed for the 1999-2005 Mazda MX-5 Miata with a manual transmission. It is manufactured from durable 304 stainless steel and features primary tubing with a 1-5/8" diameter, secondary tubing with a 1-7/8" diameter, and a 2-3/8" collector diameter. This header is built for performance and improved aesthetics.

Fitment

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Specifications

BrandCobalt
Part Number910-645
CategoryExhaust

Buy with Confidence

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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