About Us

We are a small speed-shop located in central Minnesota, specializing in engine dyno simulations and design of custom engineered components for street performance, drag race, circle-track and off-road competition.


Our primary objective is to offer the finest, proven performance parts to enhance your vehicle to perform above and beyond OEM specifications. We have tools and technical resources available to create a personalized performance package custom designed per your specifications.

Company Timeline

July 4 1988 – Founded “Don’s Speed Shop and Performance Center”
2005 – Changed the company name to “Granite City Performance”
May 2013 РBecame an authorized Steinjäger reseller
February 2015 – Became a distributor for CFR Performance

320 Street Cars

320 Street Cars is dedicated to the car community in the Saint Cloud and surrounding area, formed with the intent to unite local car clubs, tracks, enthusiasts and services to support our hobby!


Meet our team

    Don Hoeschen
    Don Hoeschen
    Blake Hoeschen
    Blake Hoeschen
    Master Fabricator
Custom Engineering
creating for unique applications

Our Design Process


form a mental image or concept


engineer a funtional prototype


prove the design and functionality


improve quality and efficiency