The Exotek B6 2.5mm Carbon Fiber Gear Box Riser Spacers offer the ability to raise the gearbox on the B6.1-B6.4 platform. By raising the laydown/layback gearboxes of the B6 platform the dog bone angle sits straighter when at ride height reducing stress and friction. Another additional benefit is the option to run a larger spur gear giving the user more options. Package includes two 2.5mm carbon fiber spacers.