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Try setting all the TQ Curve values to 0% or bring back to stock and see if you get the stuttering and/or limp mode. If so, keep PROcede out and bring it to your SA, saying you think your HPFP just failed.
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|2009 RENNtech MB C63 AMG | Black/Black Leather/Black Maple | Premium II | MultiMedia | iPod |
| TeleAid | Charcoal Filter Delete | BMC High-Flow Air Filters | High-Flow Secondary Cats | Clear Side Markers | |