Subaru WRX with interior mods and accesories

11 Best Subaru WRX / STI Interior Mods & Accessories

The Subaru WRX's interior isn't bad, but with how much you're already getting for the price with the performance, Subaru had to cut some corners in other places. Thankfully, the aftermarket has stepped in, creating many different simple interior mods that will make the inside of your WRX a nicer place to be. Here are some of our favorite interior upgrades for the 2015-2020 WRX / STI.

Cup holder liner interior mod for wrx

Our Top Choice: Cup Holder Liners

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These cup holder liners from CupHolderHero are a great interior mod for your WRX that will add some style, protection, and high-end look and feel.

This set not only includes cup holder liners, but liners for the area under your climate controls, the door pockets, the center console, and the small area in front of the cup holders. The liners have red piping works great with the WRX's interior styling. They make it a breeze to clean up any spills and dust that inevitably build up.

Billetworks Cosmic Shift Knob

Billetworkz Cosmic Shift Knob

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The shift knob is an easy place to start with interior mods, and it can add a lot of personality to your car. This shift knob from Billetworkz is an excellent choice. Their shift knobs are all machined with precision from high quality aluminum. Each shift knob's pattern is similar, but totally unique from any other one they'll make. For more great choices, check out our full list of shift knobs for the 2015-2020 WRX / STI.

READ ALSO – Best WRX Shift Knobs

Fuse Box Coin Tray

Fuse Box Coin Tray

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If there's one interior mod on this list that should have come with the car, this is it. This fuse box coin tray fits in place of the stock fuse box cover and adds some extra storage for coins, cash, gum, credit cards, or any other small items. Installation is simple since the stock cover can simply be pulled away and replaced with this one. This is one of our favorite little mods for the WRX, with how inexpensive it is, and for the extra place to put things.

red aluminum climate control knobs for 2015+ subaru wrx

Aluminium Climate Control Knobs

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If you want to add some color and premium feel to your WRX's interior, these aluminum climate control knobs are a great simple way to do that. They simply slip over the stock A/C knobs and are kept in place with their ribbed design. They are available in red, as well as white or blue.

iJDMToy Mirror Adjustment Knob cover for 2015+ WRX / STI

iJDMToy Mirror Adjustment Knob

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Add some premium look and feel to your WRX's interior with this mirror adjustment knob cover from iJDMToy. It's made from anodized aluminum, available in red, blue, or silver. It simply slides on top of the stock knob with some adhesive strips. The stock mirror adjustment knob is small and made of plastic. This inexpensive and simple interior mod makes it feel more refined and substantial, and makes it look a lot nicer.

Subaru WRX carbon fiber console hood

Carbon Fiber Center Console Hood

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Another great way to class up your WRX's interior. This carbon fiber center console hood replaces the plastic piece over the screen in the center of your dash. It's easy to install with no tools required and adds some premium styling to your interior. The carbon fiber looks great with the carbon fiber trim that comes stock in the car.

Carbon Fiber E-Brake Handle for WRX

Carbon Fiber E-Brake Handle

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The AIRSPEED Dry Carbon Fiber E-Brake Handle is a fantastic upgrade over the stock one. This simple interior mod replaces the cheap-looking plastic e-brake handle that comes stock in the Subaru WRX with something more premium and stylish. It goes great with the carbon fiber trim on the dash.

Aluminium Paddle Shifter Extensions for 2015-2020 CVT WRX

Aluminium Paddle Shifter Extensions

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If you have a WRX with the automatic transmission (CVT), then this one's just for you. These aluminum paddle shifter extensions make it easier to each the shift paddles, and they look and feel great too. They give the interior a sportier look, and the red matches the stitching found throughout the WRX's interior nicely.

Carbon Fiber Gear Shift Trim for 2015-2020 WRX / STI

Carbon Fiber Gear Shift Trim

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This trim piece from GOCOCARBON is made from real dry carbon fiber, and looks great with the existing carbon fiber trim in the WRX's interior. This gear shift trim replaces the stock piece in just minutes. It looks amazing, sitting front and center in the car's interior.

WRX LED interior lighting mod

LED Lighting Kit

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The stock interior lighting in the Subaru WRX leaves something to be desired, especially with its yellow tint. You can upgrade the interior lighting in your WRX with LEDs easily and cheaply.

This LED lighting kit will give your interior lights a cooler, brighter appearance. While the stock yellowish bulbs seem cheap, the white light from the LEDs makes the interior feel more premium.

Footwell Illumination Kit

Footwell Illumination Kit

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Footwell Illumination is an option for the Subaru WRX from the factory, but if your car didn't come with it, this interior mod is a better option than going to the dealership and having the OEM footwell illumination kit installed.

This LED footwell illumination kit from LEDGlow is universal, easily installed into any car. It has 7 different colors to select from, so you can set the mood to your preference with its remote control. It can be easily hardwired using an add-a-fuse so you have no visible wiring and a stock look and feel.


While the stock floor mats in the WRX aren't bad, you might want something that will protect your carpet a little better. Luckily, there are a few great aftermarket options for WRX floor mats.

3D MAXpider Black Weather Floor Mats

3D MAXpider Black Weather Floor Mats

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The 3D MAXpider floor mats for the Subaru WRX are made to perfectly fit your car's dimensions, designed by a 3D scan of the interior. They're made in a three-layer design to keep your floors protected and keep the mats in place.

The top layer, with its great-looking carbon fiber style texture, is made from a protective rubber, so any spills or water from your shoes won't make its way down to the floor. The bottom layer keeps the floor mats in-place like velcro, without damaging the carpet or leaving any marks. In the middle, there's a foam layer for increased comfort and sound deadening.

We highly recommend these floor mats for your Subaru WRX, with their perfect fit, great looks, and protective ability.

Weathertech floor mats for Subaru WRX

Weathertech Floormats

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Weathertech is a very well known brand for their floormats and other interior protection accessories. These floor mats are another great and popular option. These floor mats have deeper walls than the 3D Maxpider floor mats, but the styling is plainer.

If you're expecting to go through a lot of mud or snow, these may be the better choice, if you want to protect the floor of your car as best as you can, at the cost of styling.

ThinkTuning is a blog dedicated to car enthusiasts who love modifying, tuning, racing, and just driving their cars. We have guides and reviews for the top modifications you can purchase to make your car better and faster. We feature guides on car modification and buying the right mods, and car culture.

We have car mod guides for the Subaru WRX and WRX STI, Subaru BRZ / Toyota 86 / Scion FR-S, Nissan 370Z, and Nissan 350Z with more to come. We’ve noticed that it’s challenging to find all the information you need when modifying your car, so we’ve decided to try and collect, and combined with experience, make it easy car enthusiasts to modify and tune their own cars.