The K&N 63-3065 is a 63 Series AirCharger cold air intake for the 3.7L L5 engine in 2007-era Chevrolet Colorado and GMC Canyon trucks and the Hummer H3. It replaces the factory air box and filter with a roto-molded, high-density polyethylene tube, an oversized oiled cotton-gauze filter (replacement RU-1048/RC-2540), and a heat shield that mounts in the old air box space. K&N's own product page lists an estimated gain of 10.97 hp at 4754 RPM and 12.1 lb-ft of torque, but owners on user forums describe modest real-world results, so treat those numbers as estimates. Shoppers searching for a 3.7L I5 cold air intake, 2007 Colorado 3.7 CAI, or K&N 63 series Canyon intake will find this kit built for that engine specifically.
Compared with the stock airbox, the main advantage is a straighter, less restrictive path from a large filter to the throttle body, which is the design basis K&N cites for its power claims. Because the filter is a reusable oiled cotton element rather than a disposable paper filter, it avoids recurring replacement costs, though it does need periodic cleaning and re-oiling. Fitment is specific: the kit is listed for the 3.7L only, and owners on user forums report that 2004-2006 3.5L intakes will not work on 2007 trucks because the mass airflow sensor was redesigned. Owners on user forums also say this kit is not CARB-exempt, so confirm legality for your state before buying. The manufacturer's install sheet notes the kit is not designed for vehicles with a body lift.
No. The kit is listed for the 3.7L L5 engine only. Owners on user forums report that 3.5L intakes do not fit 2007 3.7L trucks because the mass airflow sensor was redesigned.
The manufacturer recommends that customers do not discard the factory air intake.
The manufacturer's install sheet lists the required tools and notes that the provided hardware must be used. Failing to follow the instructions or using other hardware may damage the intake tube, throttle body, or engine.
The manufacturer states that a typical installation takes about an hour. The install sheet calls for a basic hand-tool kit: a ratchet and extension, 10mm and 13mm sockets, a 10mm wrench, a 2.5mm Allen wrench, a T20 Torx bit, a flat-blade screwdriver, and a drill with a 1/2" bit for mounting. Disconnect the negative battery cable only after writing down radio presets, since disconnecting the battery erases stored memories and some radios need an anti-theft code. Expect to trim the supplied edge trim to fit the heat shield, and check all connections for tightness before starting the engine.
