AMG R231 SL63 "MIRACLE" EXHAUST SOUND by OFFICE-K TOKYO | Tokyo

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AMG R231 SL63 EXHAUST SOUND "MIRACLE" by OFFICE-K TOKYO ・MIRACLE is a brand of the variable valve exhaust. OFK EXHAUST HP:http://ofk-ex.jp/

Comments

so you can turn on and off the valve any time just with push of a remote control ? can it be installed on 09 sl63 ?
watttt