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      05-09-2013, 03:16 PM   #20
Rob///M5
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Drives: 2013 M5 SSII
Join Date: Aug 2012
Location: San Diego

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2013 BMW M5  [10.00]
I feel like I've said this already, but maybe not. The E Race has a very loud cold start. Louder than Sport. Sport has half as many exhaust pipes open for noise to escape, so the valves make a difference. It's pretty irrelevant to me though, as it only lasts 20 seconds.

In summary: you should buy E-Race rear mufflers. If you are too concerned about noise, you should go Sport with eisenmann center pipes ... That costs 2k more though. Sport cans alone are not enough IMO.
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