Exterior Components› Body Panels and Components

GrimmSpeed

GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter Subaru Turbo Models

$71.00

SKU: G00B 77044

Out of Stock
In Stock
Ships by Aug 5
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter Subaru Turbo Models

MIA's Description

The GrimmSpeed 3 Inch Downpipe to OEM Catback Adapter Kit is a steel adapter designed to connect aftermarket 3-inch downpipes to OEM-style 2.5-inch catback exhaust systems. Its construction features CNC laser cutting and a flared transition for seamless flow.

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 77044

Videos

SUBARU WRX/STI CATBACK INSTALL WITH GRIMMSPEED ADAPTER!

SUBARU WRX/STI CATBACK INSTALL WITH GRIMMSPEED ADAPTER!
GrimmSpeed Subaru WRX/STI 3" Catback Adapter - What's in the Box?

GrimmSpeed Subaru WRX/STI 3" Catback Adapter - What's in the Box?
GrimmSpeed 3in. Downpipe Adapter Install Video

GrimmSpeed 3in. Downpipe Adapter Install Video
Grimmspeed downpipe and catback adapters Subaru

Grimmspeed downpipe and catback adapters Subaru
GrimmSpeed V1 J-Pipe Install - 2015+ Subaru WRX

GrimmSpeed V1 J-Pipe Install - 2015+ Subaru WRX

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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