top of page

This kit consists of:


x1 Base Plate with riv-nuts

x5 Fins

x2 End caps

x2 Bridge Plates


Digital Instructions


The 2015+ WRX and STI Diffuser Starter Kit will include the base plate, end caps, bridge plates, and fins as well as all hardware and brackets required for install.

The base plate utilizes a riv-nut system which allows for easy removal and installation of fins, without ever having to remove the base plate itself.


-Made of heavy duty aluminum.

-Handmade in the USA

-Unpainted RAW aluminum finish

-Quick and easy Interchangable fins

-Durability tested and approved

-Off road use only

-Professional installation recommended


Side notes:

-This kit has only be confirmed to fit the 2015+ WRX and STI with a stock rear bumper (with and without stock diffuser).

Modifications may be required to fit aftermarket rear bumpers.


-We don't offer returns on diffuser orders since all diffusers are built to order.

-Displayed price does not include shipping due to size of package.


**Please expect a wait time before shipping. All products are hand made to order and may take 2-6 weeks to produce. Holidays and special events may extend order wait time.**

Rear Diffuser (2015-2021 WRX AND STI)

    Product Page: Stores_Product_Widget
    Write a review!
    Rate UsPretty badNot so goodGoodVery goodAwesomeRate Us

    Thanks for letting us know!

    bottom of page