I think porting the wastegate has generally been considered a better option as it doesn't require additional restriction to stay safe. It's just not exactly a convenient one.

 

Just sat down after a Friday Night in the Garage, no idea what it sounds like yet, but was greatly impressed with the fab quality of the Revel Touring-S!

The complete system is:
- REAmameya Power Expander Down pipe
- Pettit Racing High Flow Cat Midpipe
- Tanabe Revel Touring-S Cat Back