I have a RB axleback from a MP3 and it sounds great! It is a noticeable difference over the stock note during acceleration, but not as loud as a full exhaust. If you feather the gas pedal you may not notice it at all. It adds a deep tone to your exhaust, not loud and obnoxious. And it is a 15 minute bolt on to your stock exhaust, can't beat that! Also, the tip looks just right for the car, not an oversized tip that you can fit a softball through..
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