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Too loud then disconnect the asd and toss some carpet mats under your weathertechs in the car and trunk.
Too quiet then leave asd connected use weathertechs only and buy an aftermarket or bmwp exhaust.
Next.
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'07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
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