The K&N 63-1058 is a 63 Series AirCharger cold air intake for the 2003 to 2004 Toyota Tundra with the 4.7L V8. It uses a roto-molded HDPE intake tube paired with an oversized oiled cotton air filter, and it replaces the factory air filter and intake tube. The kit's stated purpose is to reduce restriction for a guaranteed increase in horsepower and torque. Compared with a loose cone filter, the appeal is a matched tube, filter, and couplers included in one package.
The manufacturer lists this kit for the 2003 to 2004 Tundra 4.7L V8, so a Tundra 4.7 owner looking for a 63-1058 cold air intake or a 2003 2004 Tundra 4.7 V8 air intake upgrade is the intended buyer. Trim and cab coverage is listed inconsistently across sources, so confirm your exact trim before ordering. Typical installation takes around an hour, according to the manufacturer. Owners on user forums describe the job as manageable, though the mass airflow sensor position can limit how the tube is trimmed, so check clearance before cutting anything.
The manufacturer states that the kit replaces the factory air filter and intake tube, so the stock intake components are removed as part of the installation.
The manufacturer lists the kit for the 2003 and 2004 Toyota Tundra with the 4.7L V8. Trim and cab coverage varies across sources, so confirm your exact trim and engine with the manufacturer before ordering.
Owners on user forums report that the mass airflow sensor position can prevent simply cutting a length off the end of the tube. One owner shortened the tube at a different point and used a coupler to reconnect it, so plan for the sensor location before you cut.
The manufacturer estimates about one hour for installation, and owners on user forums generally describe it as a straightforward swap for a home mechanic. Because the kit replaces the factory tube and filter, set aside time to disconnect the stock intake, reconnect the mass airflow sensor, and secure the couplers. Before cutting the new tube to length, test-fit it against the engine bay and the sensor position. Forum reports suggest that doing this first avoids rework.
