The Premier GM LS & LT Specialist Serving the Pacific Northwest

For over 20 years, Kaizen Speed has been the destination for high-performance GM vehicles in Washington State. While our facility is located in Kennewick, WA, a significant portion of our client base travels from Seattle, Tacoma, Bellevue, and Everett for our services. We stand behind our work 100%. 

Why Seattle Enthusiasts Drive to Kaizen Speed

We know you have options for mechanics in King County. But when it comes to high-horsepower builds, general mechanics aren't enough. You need a specialist.

• Dyno Tuning: We are one of the few shops in the NW with deep experience calibrating C7/C8 Corvettes and Gen 6 Camaros. 
• In-House Engineering: We don't just install parts; we manufacture them (The patented Kaizen Relay, Boost Ramp Controller, Billet Manual Steering Rack Mounts, etc).
• Turn-Key Packages: From 800HP-2,000HP ZL1 packages to reliable daily-driver builds, we handle everything from fabrication to final calibration.

Services Available for our Seattle & Tacoma Clients

We regularly serve clients from the I-5 corridor with the following platforms:

• Chevrolet Corvette: C6, C7 (Z06/ZR1), and C8 Stingray/Z06.
• Chevrolet Camaro: Gen 5 (SS/ZL1) and Gen 6 (SS/ZL1/1LE).
• Cadillac V-Series: CTS-V (V2/V3) and CT5-V Blackwing.
• GM Trucks/SUVs: Silverado, Sierra, Tahoe, and Escalade (Supercharger upgrades).