The 996 had larger pistons, larger valves, a stronger crankshaft and crankcases ported from the 916 SPS. But since the 916 camshaft gave a softer, less peaky power delivery and less top-end power ( versus the SPS’s ) the 996 was built with a new air intake system with two fuel injectors per cylinder. A new airbox and a distinctive underseat exhaust system were also built into the new design. The chassis was also modified. Lighter wheels were introduced along with improved calipers, discs and pads stronger compared to the 916. The suspension system was still the same Showa design but both the front and back were fully adjustable for damping and preload.