Flowmaster - 40 Delta Flow® - 3.00 Center In / 3.00 Center Out - Aggressive Sound Forced air is plumbed into

Forced air is plumbed into the left side of the helmet through a standard 1

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Flowmaster - 40 Delta Flow® - 3.00 Center In / 3.00 Center Out - Aggressive Sound Forced air is plumbed intoThis two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.