The exhaust. Sometimes the most overlooked aftermarket accessory for your vehicle. Topp Automotive offers both Manta and GSL Fabrication as 2 main options in the exhaust space. Manta have a 100% proven track record of exceptional exhaust systems, and a range so big, your eyes will water. With options for street and 4x4, petrol, diesel and hybrid, there is something for everyone. GSL Fabrication offer manufacturing excellence. Specializing in the 70 & 200 Series range, their high standards tell the story of the condition of the final product. Being specialists in the Landcruiser field, you know you are getting a quality product with GSL, with time, energy and love being put into their systems.