Video: BMW M3 pumps out 126.7 dB of brutality with an exhaust swap
The latest BMW M3 and M4 look far bolder than they sound, and have the ever-stricter EU emission standards to thank for that. Some countries do not require particle filters for some car applications, though, and this one had its filter deleted in the name of art.
More specifically, the owner handed his M3 over to BRS Motorsports for some tuning. The sedan received a 200-cell Capristo downpipe, a full exhaust system from the same manufacturer, alloy wheels and a wrap.
When it was put on the dyno, not only did it generate eardrum-rending 126.7 decibels of noise (20% louder than stock), but it also made 12 horsepower and 16 Newton-meters of torque more than it did before the upgrade.
Editor Andrew Raspopov
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