Koni Shock Technical Alert

Official KONI Shock Recall Notice

I wanted to take a moment to let you guys know about a potentially serious matter that requires your immediate attention.

Recently we received a report from a customer regarding a KONI shock absorber that had failed. This is the only incident of a broken KONI shock that we have received. We immediately obtained the part from the customer and forwarded it to the guys at KONI. It was quickly determined by the technical guys at KONI that the root cause of the failure was due to a cold weld. KONI and Factory Five Racing, Inc. are taking immediate action to replace any affected parts in the field.

The potentially affected shocks are in a small range of about 125 customers and were delivered in FFR kits and parts sales AFTER February 2010. We have identified the potentially affected lot numbers and are asking you to check your shocks for the following batch numbers:

Part Number: 30-1720, Date Code: 07-2010
Part Number: 30-1721, Date Code: 07-2010
Part Number: 30-1721, Date Code: 13-2010

Identifying the part number and date code on your KONI shock is very easy by simply examining the shock absorber and locating the part number label which can be found on the exterior of each shock absorber. The shock absorber part number and date code will be printed on this label as shown in picture 1.

An example date code would be 07-2010, which means “produced in week 7 of year 2010”. It is important to pay attention to the date code impressed on the actual shock absorber and not the date code on the box. Note: on older shock absorbers, the part number was stamped into the body of the shock. These older shocks are not affected.

If you have KONI brand red colored shocks with the above listed part numbers and date codes, do not drive your car. KONI is in the process of contacting all potentially affected customers individually with more details. If you identify one of your shocks as having one of the referenced part numbers and date codes, and are not contacted shortly by KONI, please contact the company directly at 800-209-3350. You can also call us here at Factory Five (508-291-3443) if you have any questions or concerns.

On a personal note, I am extremely impressed with the speed, care, and concern with which our supplier KONI has treated this matter. The support and cooperation we’ve received shows that KONI is 100 percent committed to our safety and that of our customers.

Dave Smith
President

Latest Factory Five News

Peter D. Graduates Mk5 Build for Son Scott’s Wedding

Factory Five customer Peter D. from Pfafftown, NC and his son Scott started to put thier Mk5 Roadster plans together early in Fall 2025. The submitted their order in mid-October 2025 with the kit arriving in mid-December. They soon started to inventory the kit and start building the car as they had a goal of having the Mk5 featured at Scott’s wedding in June 2026. “I am a retired healthcare administrator, and Scott is a project manager for a transportation company,” wrote Peter on The Factory Five Forum. “We are both very mechanically minded. I bought my first car at 14… Read More »

Read More

Factory Five’s USA 250th Celebration Event!

2026 is off to a great start, and the team wants to keep the momentum going! They have put together a sale for all of our kits to help you build your car your way this year. Score a Free IRS Upgrade OR Save $2,026 Off Options on Mk5 Roadsters, Mk4 Roadsters, Type 65 Coupe, and ’33 Hot Rod To ensure your finest ride is possible, we are offering FREE IRS Upgrades (up to $3,199 in value). Our Independent Rear Suspension is the best suspension configuration Factory Five has to offer. This upgrade package includes: OR you can save $2,026… Read More »

Read More

Rob M. Reaches First Start Milestone!

There’s many milestones when building a Factory Five including getting the kit in your garage, making it a roller, engine install, and of course, graduating the build. One of the most exciting ones though is the first start, and customer Rob M. from Suttons Bay, MI recently shared his Mk4 firing up for the first time on The Factory Five Forum! “First start was a success!” wrote Rob on the forum. “Dad made it up and we had perfect weather. I primed the fuel pump with my power probe and got the pressure right at 65 psi per the Gen… Read More »

Read More
Top