Subaru WRX Aftermarket Parts & Accessories

Featured Subaru WRX Build:

If you're looking for ideas on how to customize your Subaru WRX to improve its performance and handling, the STILLEN staff have some ideas for you. In fact one of our own, Dean Doan, is in the process of modifying his 2015 WRX. He has already added many upgrades, which are listed below. Additionally, he has plans for future improvements to help him get the power he's looking for. To read more about Dean's modified 2015 Subuar WRX, please visit our blog by clicking here.

Modified 2015 Subaru WRX

Subaru WRX Performance Parts

STILLEN Hi-Flow Intake402000
STILLEN Cat-Back Exhaust 
Cobb Access Port 

Subaru WRX Body Components

STILLEN Front LipKB23001
STILLEN Rear Deck WingKB23003
HTA Side Skirts 
HTA Rear Corners 

Subaru WRX Suspension Parts

RSR Sports-i CoiloversXSPIF400M
SPC Rear CamberSPC67660 
SPC Toe ArmsSPC67655
AEM Performance Strut Bar29-0011WR

Subaru WRX Lights

HID Upgrade Kit 

Subaru WRX Wheels & Tires

WedsSport SA-72R Wheels18×9.5 +38
NITTO NT05 Tires265/35R18

Subaru WRX Performance Shop:

Subaru WRX Performance Shop

Trust your Subaru WRX to the pros at the STILLEN performance shop, who have been modifying cars since 1986. Each of our expert mechanics are ASE certified for added peace of mind. We specialize in performance upgrades such as exhaust installations, air intake installations and suspension upgrades. However, we also perform more common upgrades such as rotor replacements, clutch replacements and more. To make an appointment, simply give us a call at 866-250-5542 and we will be happy to get you on our schedule!

Recent Subaru WRX Posts:

Employee Spotlight - Dean Doan - 2015 Subaru WRX

We take a look at STILLEN Performance Specialist Dean Doan's 2015 Subaru WRX. STILLEN Intake, Exhaust, RSR Coilovers, etc...Click here to read more!!!

AP Racing Front and Rear Big Brake Upgrades Subaru Impreza WRX and STI

STILLEN Brake Pros is proud to introduce the AP Racing Front Big Brake Kit for the 2002-2008 Subaru Impreza WRX and STI...

RS-R Coilovers & Lowering Springs Now Available at

STILLEN is proud to announce that we are now offering RS-R Black-i coilovers, Sport-i coilovers and lowering kits at Click here to learn more!