86 ITS RX-7. I've got no prior experience, and haven't yet had this car out of the garage, so I have no idea how loud it really is. However, my better half is VERY nervous about what the neighbors might think about this jet that's about to leave the carrier. Also, I might want to run at Waterford Hills, which has serious noise limits. So, in order to keep the peace at home, I need an easily mounted/removed way to quiet this screamer down.

It currently has a Racing Beat header into a single 3" pipe feeding a Flowmaster muffler with a downturn outlet. How can I make it purr instead of growl while I tinker at home?

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Marty Doane
ITS RX7
CenDiv WMR