first thing, you need to get yourself some tuning software or a piggyback device. i mean i love using a simple eprom chip to compensate my fuel and o2 readings so i can just drive it, but if your looking for faster spool you need to get a real tune dialed in before you can say that turbo doesn't spool fast enough. i don't really see the need to change it out, unless the turbo is blown. i understand its a ebay special, but id run it for a while save some money and get a tuning device. if your still unhappy with it then downsize. also in my experience 3500 is about when you'll see full boost when running off a chip, with a tuning device ive seen it down to 3000. with all that said, if you still are looking for a alternate turbo i'd suggest the Holset HX35. make sure to find the dodge with the v-band clamp and it should almost be a direct replacement.