“JJ from Ultimate Performance Speed has been a great resource for K&N on and off the track for many years. The service provided is tailored to our needs and has proven to be a great asset to our motorsports program with an immeasurable ROI.”

“JJ from Ultimate Performance Speed has been a great resource for K&N on and off the track for many years. The service provided is tailored to our needs and has proven to be a great asset to our motorsports program with an immeasurable ROI.”
CorteX is a company that prides itself on leading the automotive aftermarket and racing industry with the highest performing and best-engineered products of exceptional quality built here in the United States. Based on our values and high standards we turned to Ultimate Performance as our in-the-field technical partners.
We’ve known JJ since 2011 and have relied on his expertise with shocks and chassis setup for several years. Setup engineers sometimes have trouble relating to people and providing practical setup advice that can be understood. JJ is a master at giving people the information they need in a way that’s easy to understand. He also doesn’t mind rolling up his sleeves and getting dirty if that what it takes to make a car “right.” There are many companies out there willing sell you anything they can regardless of your actual needs. Ultimate Performance listens to customers and clients and provides a counselor sale approach focused on practical, value-add solutions that get results. You cannot go wrong by securing their services.
I have personally known and worked alongside JJ Furillo for 20 years. In that time as a Technical Director I always relied on JJ to be my General in the battle we call racing. Weather it was short track, motorcycles, and is most known for NASCAR in all the three premiere series. As he now known for his expertise in the Street Performance market with his new company he still remains my number one go to person when I need my special operator in the ongoing racing battle.
JJ has continually proven himself as an expert at optimizing suspension performance both on and off the race track since his early years at Penske Shocks to founding JRi Shocks. Pairing his insight with the leader in performance brakes makes for a winning combination.