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      08-19-2013, 06:48 AM   #16
noushy
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Drives: M8 Comp, X5M Comp, iX M60
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Location: Orchard Lake, Mi

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Quote:
Originally Posted by F12M6MD
Quote:
Originally Posted by delano
I just installed catted AMS a few days ago with stock exhaust and was feeling a little disappointed as well with power increase. Feels stronger in 2nd/3rd gear but I feel like it might have lost some top end in the 80 to 100 mph range. Hopefully it's just the ECU needing to adjust with some more miles.... I forgot to get it dynoed to see actual increase unfortunately.
Hey delano,

Are you getting any rattling noise when you are decelerating or coming down off revs?

Mark
The rattling you are experiencing are the wastegates. This has been driving Hunter crazy for weeks. I get it at slow speeds especially in a parking lot but I am probably used to it. Feel it has to do with the fact that boost builds so quickly the wastegates rattles when closing because of minimal backpressure.

Noushy
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