Hey all. I have a 2003 Civic hatchback si. Should I stick with the current power plant (stock) and build on it to get the best possible strength and performance. Or should I do a swap? If a swap is a better option what should I go with? I will be putting a turbo on. I've seen so many things online and alot of people going to or sticking with the k20's but I belive my in the a3 which is on the lower end. Thanks for the advice and input.