Providing the highest level of quality repair, modification, and customization for
every customer vehicle


Quantum Performance strives to provide automotive performance enthusiasts in the Wisconsin area with the highest quality vehicle services available. Quantum Performance provides many unique services, ranging from advanced racing level services, to specialty sourced or built performance parts, to completely built project vehicles. At Quantum Performance, we use our advanced training, realtime experience, and passionate attention to detail to ensure our customers receive a truly high quality product.

It’s very rare to find a team that goes the extra mile for a customer; not only do I feel great about my cars performance, but I feel great about meeting such cool people in the industry.
— Terry Wiensch, 2013 Evo X
I’ve been going to Aaron since 2007 and will continue to go to him. Nothing but phenomenal work and attention to detail. Would recommend him to anyone!
— Preston Sherer
Friendly and thorough service. Look forward to working with in the future! Thanks for everything guys!
— Craig Kasten
Fan of Aaron’s work since 2008. Aaron and his team are pure professionals whom live and breath performance cars.
— Nick Bogen, 2014 Shelby GT500