Killer B Equal Length 4-1 Holy Header EJ Series with SwainTech Ceramic Coating

Name: Killer B Equal Length 4-1 Holy Header EJ Series with SwainTech Ceramic Coating
Brand: Killer B Motorsport
SKU: K005 HH4-1-SWAIN
Price: 2258.97 USD
Availability: InStock

$2,445.00 $2,258.97 Save $186.03

SKU: K005 HH4-1-SWAIN

In Stock

Ships by Jun 8

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

The Killer B Motorsport HH4-1-SWAIN is an exhaust manifold designed to increase exhaust flow with smooth, optimized bends, maximizing turbocharger flow potential and reducing spool time. It features an equal-length design that produces an aggressive exhaust note while improving performance and response across the entire RPM band.

Fitment

Fitment Guaranteed

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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

Brand	Killer B Motorsport
Part Number	K005 HH4-1-SWAIN

Videos

Killer B & ETS Header Comparison For EJ Engines

Video test (ELH killer b header subaru sti)

2011 Subaru STI - Killer B Motorsports Header start up

2004 STi with Killer B Motorsport Holy Header, Killer B Motorsport EWG UpPipe and Prototype DownPipe

Subaru Sti AWE Touring w/ Killer B Header vs OEM Header

Killer B Header Sound GR.mov

2012 STi with killer B Motorsport Header & Invidia Cat-Back

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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