Looking for some rear differential protection that works well with 3″ exhaust systems? This is our 1/8″ mini rear differential skid plate. Constructed from aircraft grade aluminum and stainless steel, installs in minutes with common hand tools. Primitive skid plates offer the best protection for the underside of your Subaru. Rally-proven and tough enough for off-road abuse. Robust enough to save you from that random piece of debris lying in the middle of the freeway. Ensures complete protection for the most vulnerable components. We have designed all our aluminum skid plates to be direct bolt on, no drilling, cutting or modifying is required. When designing we consider things like approach angles, reversing over obstacles, jack-up points, ease of maintenance, and maximum ground clearance. We continue to advance, innovate and refine the segment with our new and existing designs.