The K&N 69-1504TR Typhoon is a cold air intake built around a mandrel-bent aluminum intake tube and an oversized, washable cotton-gauze filter, designed to replace the factory air filter and intake tube on the 1.5L turbocharged Honda Civic Si. The manufacturer says the system is guaranteed to add horsepower and torque, and it carries a No-Hassle Lifetime Limited Warranty. For buyers comparing it with a cheaper universal intake, the appeal is a model-specific tube and a filter you clean rather than replace. Searchers looking for a 2017 Civic Si cold air intake, a Typhoon intake for the 1.5T, or a red powder-coated K&N intake will find this is the exact fit. Installation is a DIY job with basic hand tools.
The manufacturer states that this system is not legal for sale or use in California on any pollution-controlled motor vehicle. Buyers in California should not purchase it for a street car.
The manufacturer says the filter only needs cleaning about every 100,000 miles under normal highway driving conditions. Harsher or dustier driving will shorten that interval, and the filter is washable and reusable rather than a disposable replacement.
The manufacturer rates a typical installation at about 60 minutes or less with simple hand tools, and its install sheet lists a ratchet and extension, a 10mm socket and wrench, 3mm and 4mm Allen keys, and both Phillips and flat-blade screwdrivers. Disconnect the negative battery cable first, but note that doing so erases stored radio presets and electronic memory, so write down your settings and have your radio code ready. Use the hardware included in the kit, because the manufacturer warns that skipping its instructions or the supplied hardware can cause problems. Check all clamps and connections again after the first few drives, since the manufacturer recommends periodic checks for alignment and tightness.
