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Old 02-08-2020, 12:37 PM   #9
speedup
 
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Drives: 2017 2SS Convertible
Join Date: Apr 2017
Location: McKinney, TX
Posts: 177
Quote:
Originally Posted by Lithias View Post
what you are hearing is the AFM or the NPP valves in the exhaust rattling.
I have this same noise, its hard to describe, and harder to record. If its the NPP valves, then we should not hear it with the NPP fuse removed.. right ?
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2017 2SS, Hyper Blue, 8sp, NPP, MRC
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