Who We ARE

Aaron Stauber Owner and Lead Fabricator
ASE Certified Master Technician

    The driving force behind Big 3, Aaron is skilled and experienced in nearly every aspect of automotive performance and restoration. After years of working in high-end shops, Aaron decided it was time venture out on his own and was presented with the opportunity to buy Big 3 Performance in 2011 and take the business in a new direction. Aaron strives to provide results that customers will brag about and give them the proper service that they pay for.
    While Aaron is a muscle car guy at heart, he is equally comfortable restoring a 32 Ford, tuning a turbo import, rebuilding a Ferrari V12, building a custom set of twin turbo headers or setting up a nitrous system on a big block chevy.

-Master fabricator
-Body technician
-Race engine builder
-Dyno certified performance tuning specialist
-Restoration specialist

Jim Roush ASE Certified Master Technician

    Green Bay native and the son of a service station owner, Jim started wrenching at 12 years old. After attending NWTC, Jim moved out to California to help his brother run a hot rod shop where he got his first taste of high end imports and exotics. A few years later jim returned to Green Bay and continued to develop his skills working on high performance imports and domestic machines. At this time jim started craving corners and transitioned from drag racing to road racing and ran both cars and motorcycles at Road America. Since then Jim has worked for several factory dealerships and high performance shops. He has also operated independently working on any vehicle with an internal combustion engine. Jim joined the Big 3 team in 2011.
    Jims specialties are troubleshooting electrical/computer issues and integrating aftermarket high performance parts into a car like they were built that way at the factory. If you've hit a wall with an electrical issue or are dealing with "gremlins" that have you at your wits end, Jim can troubleshoot it and get the desired results.
ASE Master certified tech for foreign and domestic in
-engine                  -suspension
-brake systems    -electrical and computer diagnosis
-transmission       -run-ability diagnosis
-steering and alignment systems        -heating and air condition systems

Megan Wurm Office Manager

    Megan is geared up to join the team at Big 3! She is an Ohio native and a proud graduate of The Ohio State University where she earned a bachelors degree in business/marketing. Her management background and bright, pleasant demeanor makes her an excellent team member, and her professional knowledge will keep things running smoothly in the the world of cars at Big 3. In her free time, Megan enjoys spending time with her kids, being outside, and baking!
    Megan is excited to get to know each of our customers and provide an excellent experience from beginning to end!


Kirk Butler Body Technician/Painter

    Born and raised in Detroit, Kirk has made his living through working on cars professionally for over 30 years. A former bodyshop owner, Kirk found Big 3 decided to return to his true calling and exchange the responsibilities of ownership and management for doing hands on work on "special" cars for passionate customers. Kirk's specialties include custom paint effects and pin striping.


Eric Jantz Automotive Body Technician
Assembly and Fabrication

    Eric joined the team in 2015 and has been a great addition to Big 3. He is a Green Bay native with several ASE certifications, a NWTC degree in Auto Body and strong fabrication skills. Eric's understanding of auto body and fabrication abilities make him an excellent assembler for advanced custom projects that demand creativity when things don't just "fit together" like a factory car.


John Ginter Autobody Technician

    John joins Big 3 as a body technician after several years or hanging around the shop and knowing Aaron outside of work. He keeps his coworkers in a joyful mood with his heart of gold. John is an avid hunter and takes care of his mother since his father passed away. His current project is a making a pro-street truck out of the Ford Ranger that was handed down to him by his father.


Robert Parson Automotive Tech

    Robert began his career by working for several local Auto shops until he enlisted in the Army in 2000. He spent 15 years in the 82nd Airborne with 4 deployments in the Middle East and also served as a Wheeled Vehicle Repairer Instructor and curriculum writer. Robert retired from the Army as a Staff Sargent in 2016 after holding positions including Fire Team leader, Infantry Squad Leader, Senior Mechanic, Shop Foreman, Motor Sargent and Vehicle Recovery Section Leader. He hold several notable service awards as well as multiple ASE certifications. Robert enjoys Racing and is currently building a twin turbo c5 corvette drag car.


Jason Treptow Mechanic / Electrical

    Jason Treptow joined Big 3 Performance in 2015 after 20 years as an electrician and maintenance mechanic in the manufacturing. He has completed ambitious automotive projects, including multiple complicated stero installations, engine swaps, wiring jobs and truck suspension/lift kit installations for himself and others in his spare time. Jason began helping around the shop on a part-time basis and a short amount of time has proven himself to be a great addition to the team. His electrical and mechanical experience make his a valuable assembler on house project cars.


Donald Mechanical

    Don grew up as an Air Force brat and went on to attend Wyotech automotive technical school and graduate with honors. Beyond general mechanics Don focused on performance oriented engine blueprinting and head porting. After a stint as a lubrication tech at a dealership, Don joined Big 3. He has proven himself to be accurate and detail with precision measuring tool and assist with engine blueprinting. Don enjoys autocross, road course and drag racing. His current personal project is a fully built '78 Firebird set up as an all-around performance street car.


Josh Vandenack Body and Assembly

    Josh joins the team and brings a lot of hands-on experience in both mechanics and body work. When he approached us to "try out" for a position it didn't take him long to fit right in. The son of a mechanic, he is a life long gearhead who started working on cars with his dad at the age of 5 and has gone on to do complete builds of cars, trucks (both mud running and pulling) and bikes. Josh is an excellent body technician and painter and has converted several Mustang coupes into fastback and painted many truck and bikes as well. He is currently working on a 70 Mustang street/strip with a 514 big block and is very well versed in Fords and American Muscle in general.


Jesse Bourdeau IT/Media

    Jesse officially joined the team in 2013 after several years of involvement with many shop projects as our neighbor at Shelby Parts and Restoration. His flexible skill set and professional experience ranging from IT/Multimedia to automotive restoration and parts development are useful additions to the team. Jesse handles various duties including the creation and maintenance of our website, general IT tasks, various tear down and assembly work, and dyno tuning assistance. Jesse is working on several interesting personal projects, ranging from an all aluminum wide body fastback Miata with V8 power to a "fully built" 2005 STI.