Video clip, as requested.
There is definitely a difference. My tires are once again holding air, so I went for a drive. There is some resonance at ~2900RPM, but it is not 'drone', and it's only noticeable for a range of about 100 RPM either side of 2900. Most noticeable difference is at low RPM - just sounds a little meaner.
I like it. I paid $600 or so for an Injen exhaust that didn't sound appreciably better than this.
The drill bit cost me less than 30 bucks. Not bad, considering how many people I've seen drop a thousand dollars on an exhaust they wound up hating.
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