BMW 4 Series Performance Exhaust - Akrapovic - Sound Kit. This Akrapovic Sound Kit is an exhaust control valve kit engineered for select BMW 4 Series 440i (F32/F33/F36) applications, enabling on-demand management of the exhaust flaps when paired with a compatible Akrapovic system.

Designed to integrate with Akrapovic exhausts, the Sound Kit gives you practical control over exhaust valve operation for daily driving or spirited runs. It allows quick switching between subdued and more dynamic sound profiles while maintaining the quality and reliability expected from Akrapovic components. Fitment is intended for vehicles specified by Akrapovic, including 2018–2020 BMW 440i platforms with OPF/GPF; please verify compatibility before purchase.

Features

• Driver-controlled exhaust valve operation
• Works with Akrapovic systems specified for 2018–2020 BMW 440i (F32/F33/F36) w/OPF/GPF
• Toggle between quieter and more aggressive sound profiles
• Akrapovic quality components and harnessing
• Vehicle-specific integration; check fitment prior to ordering

Have questions about fitment or installation? Call us and speak with our team. We offer professional installation and customization at our Austin, Texas and Los Angeles, California area locations. Texas: 512-982-9393. California: 562-981-6800. Considering multiple items? Contact us for combined shipping discounts. We install on premises at both locations.

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