Full Exhaust valve kit - BMW E90 M3 S65 V8 4.0 L

Full dual exhaust from after manifolds to X pipe to dual mufflers (shown at beginning of video). Small resonators in place of cats. electric valve at each muffler controlled by remote.
BMW E90 E91 E92 E93 M3 4.0 V8 cat back exhaust sound

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Setup shown in description. Sounds totally different from 4.0L M60 with similar setup 😊