Bill,
Like Rick, I am also running the Dynomax Performance 17762 mufflers.
It's essentially the ERA under car exhaust, but it turns out before the rear tire. It's tucked up under the car and the exhaust sounds great from idle to full throttle with a nice tone.
Other setups are less restrictive and will provide more horsepower, just depends what you are looking for.
There are some photos on page 23 of my ERA FIA build thread.
ERA 2136 Build Log
Hope this helps.
- Tim