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Exhaust› Headers, Manifolds and Components

Speed Engineering

1 3/4" Longtube Headers

$469.98 $299.99 Save $169.99

SKU: 25-1012/25-1014

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Speed Engineering longtube headers are constructed from 304 stainless steel and designed for 1999-2006 Silverado, Sierra, and SUV models with V8 engines. These headers feature 1 3/4" mandrel-bent primaries, TIG-welded construction, and a 3" collector. They are dyno proven to provide performance gains of over 25+ rwhp.

Key features include CNC machined flanges, merge spikes, and a race version without air and EGR fittings. The headers are available with natural stainless steel construction and come with standard graphite manifold gaskets. They are specifically designed for 4.8L, 5.3L, and 6.0L V8 engines.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSpeed Engineering
Part Number25-1012/25-1014
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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