Exhaust› Headers, Manifolds and Components

GrimmSpeed

GrimmSpeed 04-21 Subaru STI Unequal Length Exhaust Header

$1,049.00

SKU: G00B 113026

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Designed for Subaru WRX and STI, this GrimmSpeed Unequal Length Header enhances exhaust flow and increases horsepower and torque. It's crafted from thick-wall 304 stainless steel for durability and includes an EWG Up-pipe (EWG sold separately). This header is engineered to maintain the iconic Subaru boxer rumble.

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

BrandGrimmSpeed
Part NumberG00B 113026

Videos

GrimmSpeed Unequal Length Header Install - Subaru EJ Engines

GrimmSpeed Unequal Length Header Install - Subaru EJ Engines
NEW PRODUCT: GrimmSpeed Unequal Length Header - 04-21 STI, 02-14 WRX

NEW PRODUCT: GrimmSpeed Unequal Length Header - 04-21 STI, 02-14 WRX
The BEST Subaru Header Install🔥 - UEL Sound & EL POWER!

The BEST Subaru Header Install🔥 - UEL Sound & EL POWER!
Grimmspeed UEL Header- Subaru STi q300 cat-back exhaust

Grimmspeed UEL Header- Subaru STi q300 cat-back exhaust
GrimmSpeed UEL EJ Series Header w/ Catless Downpipe & Invidia N1 Street Exhaust WRX/STi

GrimmSpeed UEL EJ Series Header w/ Catless Downpipe & Invidia N1 Street Exhaust WRX/STi
Grimmspeed UEL Header-Subaru STi Cobb SS cat-back exhaust

Grimmspeed UEL Header-Subaru STi Cobb SS cat-back exhaust
Boosting Performance: Grimmspeed UEL Header Installation on 2008 Subaru STI

Boosting Performance: Grimmspeed UEL Header Installation on 2008 Subaru STI

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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