Exhaust› Headers, Manifolds and Components

Killer B Motorsport

Killer B Equal Length 4-1 Holy Header EJ Series 2-Bolt

$1,689.00

SKU: K005 HH-2BOLT

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Killer B Motorsport 4-1 Holy Header is an exhaust manifold designed to improve exhaust flow and engine performance. It features a 4-into-1 design with a 2-bolt flange, compatible with various 2-bolt up-pipes. Some versions are Swain coated for enhanced durability and heat management. It is designed for Subaru WRX and STI models.

Fitment

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Specifications

BrandKiller B Motorsport
Part NumberK005 HH-2BOLT

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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