The 2nd gen boasts of electronic waste gates, timing chain redesign, has higher boost turbo, a port injection. It also has a 10.5:1 compression ratio compared to 10:1 in the first-gen. 2nd gen's camshafts are hollow and lighter than the 1st gen's.in the 2nd gen; there is reduced stress on the timing chain as it has a dual system compared to the first gen that had only one chain.