What do you guys recommend on how to go about beefing up a 1999 Impreza RS. I was reading about a WRX engine swap but the services can go upwards of $7,000. I guess its a good idea but very pricey. what do you guys think is a good way to mod an impreza, besides the obvious intake/exhaust. i also read about possibly turboing an impreza, but i know not which turbos would be best. Thanks in advance for you help