performance parts

  1. Defined USA

    Defined USA

    Established in August of 2009 and based out of Springfield Missouri Defined Performance has a distribution advantage over most companies.
  2. SDMotorworks

    Official 2015+ WRX/STI Picture Thread

    This thread is for the 2015+ WRX/STI owners out there to show everyone their cars. Lets get some good pictures on here to share to the community. Especially with so many new parts coming out for these years, people can show their builds and ideas. Below is a customers 2015 STI we just...
  3. HolyCrapItsFast

    Support our vendors!

    I just wanted to ask everyone to give our vendors a chance to give you a great deal on parts and services. :D There is every advantage to supporting our vendors because you get great deals on parts and top notch support and the vendors get your valuable business. In turn our vendor accounts...
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