Your not going to gain much in HP from that 1.6 motor in the Si. Unless you dump TONS of money into a N/A build. Doing a turbo build is the most logical way to gain power. Now I could get slapped by someone else claiming something else, but whatever.I have a 2000 honda civic si and i just want to know what are some aftermarket parts for my engine that I could put it to gain hp? And not just slap on a turbo
....And not just slap on a turbo