Subaru WRX STI (2008–2014) Aftermarket Parts

The 2008–2014 WRX STI was a turning point for Subaru's rally-bred hero—wider, more refined, but still bursting with turbocharged fury. Under the bonnet, the EJ257 delivers that signature surge of power, and the DCCD-equipped AWD system makes it feel unstoppable in any condition.

Whether you’ve got the aggressive widebody hatch or the later-model sedan, this STI platform is an absolute favourite among tuners—and for good reason. It’s rugged, mod-friendly, and responds brilliantly to upgrades that turn it into a genuine street or stage beast.

At Pro Speed Racing, we’re all about helping you extract every ounce of performance from your WRX STI (2008–2014). With access to top-tier aftermarket parts, we’re here to support your build—whether you're aiming for sharper handling, faster acceleration, or a bolder, louder presence on the road.

Why Upgrade Your WRX STI (2008–2014)?

• Unlock serious gains with turbo-back exhaust and ECU tuning
• Improve cornering response with upgraded sway bars and coilovers
• Reduce drivetrain slop with pitch stop mounts and bush kits
• Add aggressive boxer tone with UEL headers and muffler deletes
• Enhance turbo response with intake and intercooler upgrades
• Reinforce the transmission for higher power applications
• Improve thermal management with racing radiators and oil coolers
• Upgrade clutch and flywheel for better power delivery
• Dial in precise alignment for street or circuit use
• Build a WRX STI that handles as hard as it hits

Shop WRX STI (2008–2014) Parts by Category

We’ve made it easy to find the exact parts you need. Browse by category:

• WRX STI (2008–2014) Brakes
• WRX STI (2008–2014) Exhausts
• WRX STI (2008–2014) Blow Off Valves
• WRX STI (2008–2014) Suspension & Steering

Or use our category filter below for more parts!

Find Your Perfect WRX STI (2008–2014) Mod

Want a shortcut to finding the perfect fit? Add your vehicle to our Garage Function—it filters all the compatible performance parts just for your WRX STI. No guesswork, just premium upgrades that fit right, first time.

Why Shop WRX STI (2008–2014) Parts at Pro Speed Racing?

• Huge range of tried-and-tested STI performance parts
• Access to premium Japanese brands built for the EJ257 platform
• Enthusiast-run team with real-world Subaru build experience
• Fast Australian shipping with local support you can trust
• Trusted by WRX STI drivers, tuners, and motorsport teams nationwide

Built to Be Modified—So Let’s Get Started

The WRX STI was never meant to be left alone. Browse our full selection of WRX STI (2008–2014) performance parts and start unlocking the true capability of your build.

Tuning other cars too? Check out Pro Speed Racing for a massive range of aftermarket performance parts built for real drivers.