I have had one for almost a year...and its awesome.

The turbo sound is pretty sweet. I will try to make a video sometime soon of mine....at warm idle it really does sound like a truck.

Mine is a 2.5" pipe from the turbo to the rear....nothing else.

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'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
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