Fits all variant models including Si, CVT, 6MT, RHD, International Models, Etc. Important Notes: NO ECU CALIBRATION REQUIRED Technical Notes: The PRL Motorsports Stage 1 Intake System offers great gains at an affordable price. This kit replaces the corrugated factory inlet hose with our better looking, smoother flowing 4-ply silicone hose and high flow air filter. The pleats found in the factory hose disrupts air flow, which limits power potential and throttle response.