The factory plastic resonator pipe on the 135-300 Verado is restrictive, crack-prone, and a known boost leak source. The USP Marine High-Flow Air Intake Pipe replaces it with 4-ply wire-reinforced silicone piping — the same spec used in our 1000HP turbo builds at USP Motorsports — plus CNC-machined aluminum adapters for smooth, uninterrupted airflow transitions. The result is a +30% CFM improvement over stock, sharper throttle response, lower intake air temps at WOT, and that unmistakable supercharged induction sound.

Replaces factory part #: 892383001 (Resonator)

Features

• +30% CFM improvement over factory
• 4-ply wire-reinforced silicone piping
• CNC aluminum adapters for venturi-like flow
• 316 stainless clamps throughout
• Eliminates factory plastic resonator — crack-prone and restrictive
• Enhanced supercharged induction sound

Fitment

• Mercury Verado L4 135 / 150 / 175 / 200HP
• Mercury Verado L6 200 / 225 / 250 / 275 / 300HP