About Us

Weapons Grade Performance has two locations serving both the East and West Coasts.

Our Wallingford, Connecticut shop has been operating since 2012, generating the highest quality performance available. Our 3600sqft facility has state of the art tools and equipment, full dyno testing capability, in house engine and transmission assembly, vehicle transportation, as well as tuning services. We specialize in the performance of the Nissan GT-R, GM LS/LT vehicles, and are the home of the BRZ06, the world’s first and most complete LS/LT swap kit for the FT86 Subaru/Toyota/Scion platform!

Our permanent Kirkland, Washington location is currently under construction, but we have been open for business for over a year out of Stew’s Self Service Garage with the same great offerings as on the East Coast!

  • FAST TURNAROUNDS
  • HIGHEST QUALITY PARTS
  • PERSONALIZED SERVICE
  • RELIABLE PERFORMANCE