I stick by my comment about the tone being deeper if you put the complete Fabspeed setup on a stock car. It howls.... The tone definately has a few db of extra lows. No doubt. Obviously not as much as swapping mufflers, but there is more bottom.
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1987 Buick Grand National, 2009 BMW E90 M3, 2016 Audi S6, 2018 MB E63S AMG, currently in 2021 M5 Competition
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