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I notice the same only at very low rpm all stock with mpe optioned from the factory.
I heard that the valvetronic valve in the rear section of the exhaust can make noise too. Something about removing some washers to put more tension on the arm and eliminate vibration?
Can anyone confirm.
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60-130 mph 6.72 secs
1/2 mile trap speed 158 mph
ecutek - bend calibration pro tune - flex fuel - mpe - stock turbos - oem+
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