Meet our Boulder Staff

Christopher Kulaga
Chris is our Sales Manager and has lived in Colorado for 17 years. Chris has been at John's for 10 years and has worked in a variety of positions for us. He is an ASE Certified Service Consultant. He enjoys spending time with his wife, three children, and two dogs as well as enhancing the look of your vehicle. Chris also enjoys playing football and basketball in his spare time.

Tabitha Hoffmann

Tabitha is our Marketing Manager. She works hard to keep our locations full of new and existing customers by continually evaluating the market and making sure our customers are getting their needs met. She also fills in as our shuttle driver. In her spare time she enjoys the fine arts, movies, shopping and playing with her two dogs. She is a native of Coloradoand of Boulder.

Craig Wallace
"Wally" (his nickname) is our Service Manager, is an ASE Master Technician and is L1 and X1 certified. He very close to receiving his AMI certification. He is also a graduate of the "Dale Carnegie Course" which means he is a real people person and always displays a positive attitude. Craig has been in the automotive industry for over 25 years, 9 of those years here at John's 4x4. His most enjoyable pastime is spending quality time with his family and his dog "Bob". Craig has lived in Colorado for 34 years.

Grant Roberts
Grant has been at John's for the past 5 years and is an ASE Master Automotive Technician, ASE Parts Specialist and is also X1 and L1 certified. He has been in the Automotive Industry for the past 10 years. Grant enjoys hunting, fishing, skiing, riding dirt bikes or just about anything that involves the outdoors. He is a native of Colorado.

Brent Manzanares
Brent has been with John's for 6 years as one of our Service Technicians. He is an ASE Master Automotive Technician and has 12 years of automotive experience. Brent enjoys fishing, roller hockey and spending quality time with his family. Brent has been a great addition to our team. Brent is a native of Colorado.

John Rush
John Rush is the co-owner of John's 4x4 Centers with his beautiful wife Terri. He holds 15 ASE Certifications including ASE Master L1 Technician, ASE Certified Service Consultant and ASE Parts Specialist. John is also an AMI graduate. He has been the winner of the NAPA ASE Regional Technician of the year award for 2004, 2005 and 2006. He has been in the automotive industry for over 30 years and has served on the NAPA AutoCare National Advisory Council, WARN Advisory Council, Rancho Advisory Council and is the current president of the Colorado Select Napa AutoCare group and the current Board Member of ASA Colorado. John is one of the hosts of Drive Radio, a weekly radio program on AM630 KHOW in Denver designed to educate listeners on automotive related issues. He also hosts GearHead Radio, a show geared toward the car and truck enthusiast on AM760. He believes in giving back to the industry that has been so good to him and his family. He really enjoys helping others reach their full potential. He is also very involved in with his family and in his church. With 6 grown children and 1 still at home, there isn't much time left over for hobbies, but he does enjoy football, camping, fishing and hunting. Most of all, John is very thankful for the great group of people that he has to work with. our success is due to the efforts of all of our people. John is a native of Colorado and of Boulder.

Terri Rush
Terri, John's wife, is the co-owner of John's 4x4 Centers and the office manager. She and John work closely together in the overall operation of the company as well as setting future goals for the business. Terri is currently working on her AMI Certification. She enjoys football (yes football), cooking, traveling, and taking care of her 7 children. She is very involved in her church and helps out in several community outreach programs.

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“…their knowledgeable sales staff has helped me accessorize my 4x4 just the way I want it!”
~Bryan