Yeah, it is the Medallion. I get a very minor drone at 2300-2600 rpm if I remember (It's been 6 months). It's mostly because the long tubes, not the Tanabe. Whatever 43-52 mph is in 6th and only under load. I admit though I opened a similar thread in the forced induction section because when pushing 500whp, that 2.75" restriction may become a factor. Naturally aspirated though, I wouldn't even worry.
Edit: click on my build thread, I have an 8 minute video where I drive and the camera is in the cabin, turn it up good speakers or headphones. I try and hit all the rpm points and show any drone in the exhaust. I'm not sure how well you'll be able to hear it.
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Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI
New Car: Under Construction
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