As an authorized AMP Research dealer, The Topper Shop Inc located in, Greenville, MI is committed to helping you choose the right AMP Research product for your vehicle. With four PowerStep lines, BedSteps, Bed Xtenders and accessoriesThe Topper Shop Inc will help you select all the options you need for your lifestyle. The Topper Shop Inc has a wealth of experience when it comes to power running boards, bed steps and bed extender products.The Topper Shop Inc offers the best choice of PowerSteps, BedSteps, BedXtenders and accessories. They also sell and install other truck, Jeep & SUV accessories. If you want the best deal on a brand new AMP Research product and want it done right and quickly then head over to The Topper Shop Inc in Greenville, MI your local preferred AMP Research dealer.