Need to know ASAP which part I should buy!!!!!!!!
Want to buy fiance either a greddy 4-2-1 header or a set of civic type R cam gears. Which are the best to buy. I want the most horsepower gain possible. Let me know all will help me now. Don't know too much about parts so please help.
I guess it would be good to let you know that we own 2 1999 civic Si's. He will be getting a part from me for Christmas. All we have is AEM intake on both so far. Please help. thanks
Want to buy fiance either a greddy 4-2-1 header or a set of civic type R cam gears. Which are the best to buy. I want the most horsepower gain possible. Let me know all will help me now. Don't know too much about parts so please help.
I guess it would be good to let you know that we own 2 1999 civic Si's. He will be getting a part from me for Christmas. All we have is AEM intake on both so far. Please help. thanks