USP Marine Tuning High-Flow Boost Pipe Kit for Mercury Verado 135-300

USP Marine Tuning High-Flow Boost Pipe Kit for Mercury Verado 135-300The 135 300HP Verado engines don't have water cooled superchargers, so the boost pipe design is unique to this platform and the factory plastic pipe is just as problematic. Narrow, restrictive, and prone to the same boost leaks that plague the larger L6 engines, the OEM coupler between the boost valve and intake manifold is one of the most common failure points we see. The USP Marine Boost Pipe Kit for the 135 300 solves both. Mandrel bent 2. 5"

The 135-300HP Verado engines don't have water-cooled superchargers, so the boost pipe design is unique to this platform — and the factory plastic pipe is just as problematic. Narrow, restrictive, and prone to the same boost leaks that plague the larger L6 engines, the OEM coupler between the boost valve and intake manifold is one of the most common failure points we see. The USP Marine Boost Pipe Kit for the 135-300 solves both. Mandrel-bent 2.5" aluminum tubing, 4-ply stepped silicone couplers, and the factory replacement coupler are all included — giving you maximum airflow and confidence that you'll never chase a mystery boost leak again.

Replaces factory part #s: 887938003, 884408A08

Features

• +10% CFM over factory boost pipe
• Mandrel-bent 2.5" aluminum tubing
• 4-ply stepped silicone couplers
• Includes replacement boost valve-to-manifold coupler
• 316 stainless clamps
• Wrinkle black powder coat finish

Fitment

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