There are several exhausts that sound decent. The Ford Racing Touring is a good sounding exhaust, the RIP Tuning is also good as is the single 3 inch from Ultimate Racing. Prices, are not cheap for this car.
Glad to hear there is a single 3" available. No reason for the added weight plus I know catless mufflerless SRT-4 Neons resonated like mad with dual exits. You can say it doesn't sound right but in reality OHC cars don't sound right compared to a OHV car.