| 04-16-2020, 07:10 AM | #1 |
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2020 m4 gpf milltek race system
Hi All,
Recently purchased a brand new 2020 M4 Comp Pack. As no doubt most of you have already discussed many times... the sound is woeful. Even in M1 an M2 Modes. I am currently in discussion with a company who have recommended the Milltek GPF Race System ( and potentially removing the secondary cats) Have any of you done this and if so... video links would be much appreciated as are your thoughts. Thanks |
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