Sale

Exhaust Headers, Manifolds and Components

MuscleRods

Full-Length Steel Headers

$814.00 $669.00 Save $145.00

SKU: MR45906

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

Moderate — 2–4 hours

Description

The MuscleRods MR45906 headers are specifically engineered for LS engine swaps into early GM vehicles, offering a full-length, steel construction. These headers feature 1-3/4 inch primary tubes constructed from 16-gauge steel and terminate in 3-inch slip-fit collectors. They are finished with a durable HTC (Hi-Tech Coating) silver ceramic coating for heat resistance and aesthetic appeal. The package includes all necessary mounting hardware, gaskets, and O2 bungs, simplifying the installation process. These headers are intended for use with Hedman Husler LS-Engine Swap Mount Kits and are compatible with a range of transmissions, including the T-56, 4L60E, 4L65E, and 4L80E. The product specifications include a round cylinder head port shape and a flange thickness of 3/8 inches. The collector type is a slip-on style race collector. While O2 sensors and reducers are not included, the headers are designed for straightforward integration into a custom exhaust system.

Fitment

Fitment Guaranteed

Don’t gamble
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.

Available on iOS & Android

Specifications

BrandMuscleRods
Part NumberMR45906
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.

View Full Return Policy