i am assuming that you have a 99 si? well in stock form your b16 is going to have a hard time dealing with 25psi. you should look into one of the turbo kits made for your car. greddy makes a nice kit. http://www.greddy.com/products/turbo_frame.htm

i am assuming that you are new to the scene, hence the type of question that you asked. people on drag tend to be harsh to individuals that dont know alot about cars. you will will have to decide to whom you will listen to. ignore the dicks and do as much research as you can about what you want to do. good luck with your project. ill help if i can mike