that turbo is just right. I've gone for numerous rides in a eg hatch with an hmt kit on it using that turbo, i've also been able to drive said hatch, and let me tell you... that thing spools quick and pulls real well almost to redline. Great turbo for a "point and shoot" goal. It wont get you 500whp but it will add a great amount of mid range hp, which is the hp you use daily.
Keep it, install it, tune it, have fun.