Features: Vehicle-specific adapter ring for a professional and acoustically optimized integration of the tweeter in the original mounting location of the vehicle Two-part design for adaption of 1″ / 25 mm and 0.75” / 20 mm HELIX COMPOSE tweeters Easy installation and secure fixation of the tweeter in the adaptor ring via snap lock Compatibility: Speaker: i7 Ci7 T20FM-SC i5 Ci5 T25FM-CA i3 Ci3 T20FM-TI Ci3 K100.2FM-S3 Ci3 K130.2-S3 Ci3 K165.2FM-S3 Ci3 K165.2FM-S2 Ci3 K200.2FM-S3 Ci3 K200.2FM-S2 BASIC CB T20FM-S CB K100.2-S3 CB K130.2-S3 CB K165.2-S3 Car models: Suitable for various Audi vehicles with factory installed tweeter Further information about the vehicle compatibility can be found in our FlexMount Finder (https://www.audiotec-fischer.de/en/compose/composeIndex) Scope of delivery 2 x FlexMount25 adaptor ring 2 x FlexMount25 to FlexMount20 adaptor ring