Who We Are

SMA®, Inc. (Stinger-Mac Accessories) is the industry's largest manufacturer and distributor of aftermarket products and accessories for Hummer and other vehicles. SMA has also recently made the jump to become a Tier 1 supplier to the OEM's, and is currently furnishing its contracts with General Motors for the Hummer H2 Program. As a company, our mission has remained the same since 1996, to serve the automobile community as a premier designer, manufacturer, and supplier of premium parts and accessories. Accordingly, SMA prides itself in designing, manufacturing, distributing, and servicing high-quality automotive parts to OEM standards, while always maintaining the image and integrity of the respective vehicle brands.

"The SMA Difference"

Not only does SMA offer the most diversified line of accessories for the Hummer, and other brands, but it also backs its product line with exceptional customer service, outstanding technical support, and the industry's most extensive warranty program. SMA has also accepted the ISO Quality Management System, and is current upgrading to ISO:TS 16949 certification.

Outstanding Design & Manufacturing Process

SMA's distribution of OEM products accounts for over one-half of our total sales. SMA is proud to employ a full staff of design, manufacturing and quality engineers whose task is to continually research and develop an outstanding line of quality products that are intended to remain consistent with the wishes of our customers.

Creative Marketing

SMA also employs its own marketing and promotions staff. In addition to outside campaigns that incorporate and utilize the Hummer, this staff is responsible for all of our marketing and promotions from strategy and design, to producing merchandise, and all the way to event execution.

Exceptional Customer Service & Technical Support

Customer service and technical support continue as the foundation of our company and have been absolutely integral to our success as the premier manufacturer and supplier of aftermarket products and accessories for the Hummer and other like brands. SMA's highly trained customer service staff is willing to assist our clients seven days a week. Furthermore, SMA's technical support team is comprised of our very own, in-house technicians and specialists who have been thoroughly trained on both the manufacturing processes and installation procedures of the entire SMA product line.

Extensive Warranty Program

SMA's warranty program is simple. Not only do we back our entire line of OEM products against manufacturer defects, but we also honor all warranties included with each of the non-OEM products we carry. At SMA, we stand behind every product that we manufacture and/or distribute.

We hope you enjoy our product. We always welcome new product ideas and suggestions. Please feel free to contact any of us directly with your questions and/or concerns.