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The Napleton Westmont Porsche Team

Our Porsche Team

Let us introduce you to our staff, show you some of our special vehicle offers and take you through our complete line of new, Certified pre-owned and used inventory. We can help you find exactly what you are looking for.

We know your time is valuable. We are sure you will find our site a fast and convenient way to research and find a vehicle that's right for you. If we can be of any assistance while visiting us online, send us an email and we will promptly reply.We look forward to serving you!



Jeffrey Witham

Jeffrey Witham | General Manager

Jeffrey T. Witham is the General Manager of Napleton Porsche. Jeff grew up in the Automotive Industry earning his stripes nationwide. He has spent the last 27 years learning and embracing the Industries rapid growth and change. Achieving consistent success in an environment that is constantly changing and demanding improvement is one of his great passions’. His outstanding level of integrity and commitment to his colleagues and peers has earned him a bright and long career. “Watching people grow and succeed has always made me happy and excited for the future of this Industry."

Jeff has been with the Napleton Autogroup for 16 years Jeff is happily married and a proud father of two children. Takes great pleasure in spending his free time with his family.


Eric Hargrove

Eric Hargrove | Certified Porsche Sales Manager

With over 20 years of auto experience, I look forward to making your next purchase enjoyable and painless. I take great pride in being a responsive and transparent Certifed Porsche Sales Manager that understands that you want what you want, when you want it. 

My door is always open and I welcome any and all suggestions you may have.


Phone: 630.725.0911 • Email:

Paul Ksiezyc

Paul Ksiezyc | Certified Porsche Brand Ambassador

Paul is a Purdue University graduate with a sales and sales management degree and has been in the automotive industry since 2002. As a Porsche enthusiast he decided to join Napleton Porsche in the fall of 2006 and has worked as a Certified Porsche Sales Professional since. When he is not working he likes spending time with his 2 daughters.

Phone: 630.725.0911 • Email:

Kerry Terlep

Kerry Terlep | Certified Porsche Brand Ambassador

Automotive Experience since 1985

Fulfilling the automotive needs of customers with the up most professionalism is the standard for which I achieve.

Outside of work I enjoy spending time with family, exercising, and enjoying football.

Phone: 630.725.0911 • Email:

Eric Kozuh

Eric Kozuh | Certified Porsche Brand Ambassador

Eric Kozuh joined the Napleton Auto Group in 2014.  

Transitioning from a 17 year Real Estate Career, Eric quickly became a Global Brand Ambassador for Porsche. He has embraced the Industry and developed a love and respect for Porsche.

Eric currently lives in Woodridge, IL with his 3 children.

Fax:   630/769-0805

Phone: 630.725.0911 • Email:

Mark L. Greco

Mark L. Greco | Service Director

Mark joined the team at Napleton Porsche of Westmont in 2003 and has 20 years of automotive experience encompassing multiple automotive manufacturers and independent repair facilities.  He has also met all requirements to become a Porsche Certified Service Manager, a Porsche Brand Ambassador and holds an ASE Certification.  Mark is also a member of the Porsche Dealer 20-Group.

Phone: 630.688.4328 • Email:

Thom Stailey | Parts Manager

Phone: 630.725.0911 • Email:

Russ  Blahetka

Russ Blahetka | Service Consultant

Russ has over 20 years of experience in the automotive field. A majority of that time has been spent as a Master technician, however he has also taught for Mercedes-Benz as well. As an automotive enthusiast he's spent a large amount of time at Autobahn Country Club, Blackhawk Farms, Gingerman Raceway, and Road America. Russ has been with the Napleton Group as a Porsche Service Consultant since 2010.

Phone: 630.688.4023 • Email:

Ed Zielke

Ed Zielke | Porsche Gold Technician

Shop Foreman. 24 years of experience. 

What does it take to master your craft? It takes dedication, extensive training, and a desire to always be better. Those qualities describe all the technicians you will find at Napleton Porsche, but especially our Porsche Gold Meister Technicians. We have truly mastered our craft--the art of taking care of your Porsche. 

Phone: 888.960.7384

Sam Mak

Sam Mak | Porsche Gold Technician

16 plus years of experience

You can be confident in the work I will do as a Porsche Gold Technician on your vehicle. 

Seven out of ten Porsche vehicles ever built are still being driven today. This is a testament both to their dependable quality and the expert technicians who service them regularly like myself.

Phone: 888.960.7384

Tony Lapinskas

Tony Lapinskas | Porsche Gold Technician

12 Years Porsche Gold Level Technician

The Porsche Gold Technicians at Napleton Porsche are members of an elite group. Tony undergone extensive training to learn the ins and outs of vehicle maintenance and service. This ensures that Porsche owners receive the best service possible for your vehicle when you come to our Napleton Porsche.

Phone: 888.960.7384

Eric Dehoff

Eric Dehoff | Porsche Gold Technician

10 Years Gold Level Technician

Since 2002, Eric has been working as a professional technician and has been a Certified Porsche Technician since 2005.

Since then, Eric has had numerous hours of factory training and has reached Gold Level within the Porsche Technician Program. We here at Napleton Porsche are proud of Eric and everything he has accomplished. 

Phone: 888.960.7384

Ryan Loehman

Ryan Loehman | Porsche Silver Technician

5 Years Porsche Service Experience: Silver Level

Porsche's worldwide Certified Porsche Technician program ensures that the workshop personnel is fully qualified. There are successive levels of qualification: Bronze, Silver, and Gold. Porsche technicians take various theory exams to test the knowledge acquired during the Porsche training courses. 

Ryan is motivated to service and maintain Porsche vehicles because of the passion Porsche has for the cars they build.

Phone: 888.960.7384

Sean Kruse

Sean Kruse | Porsche Bronze Technician

Bronze level - 1 year of Porsche service experience.

Sean provides value and peace of mind to our Porsche owners and ensures that they receive unrivaled expertise in the service and maintenance of their vehicles. 


Phone: 888.960.7384