Description
PRL Cold Air Intake for 17-21 Honda Civic Si - PRL-HC10-INT-CAI-B
Popular fitment: All 2017-2021 Honda Civic Si 1.5T
Fits Honda Sensing Package
Canadian Models Require USDM Windshield Washer Reservoir Conversion
There’s a reason PRL's Cobra Cold Air Intake Systems is a constant topic of discussion and so highly regarded. Their CNC machined billet aluminum MAF Housing was designed to provide *factory-spec fuel trims (-4% of factory STFT & LTFT) for optimal drivability and performance. The Cobra CAI utilizes a 4" volume from the air filter into the MAF Housing and is available with two different MAF housing choices; a Standard Bore housing and a Big Bore housing. Both housings utilizes the factory MAF sensor, but feature two different diameters and profiles. As mentioned above, the Standard Bore housing is designed to provide factory-spec fuel trims WITHOUT any tuning whatsoever. The Big Bore housing allows a 50% larger volume of air in comparison to the Standard Bore housing, which is why a tune IS required. This larger volume of airflow reduces pumping loss and creates an unrestricted air path to feed the MAF housing with ambient temperature air.
- NO CALIBRATION REQUIRED FOR SANDARD BORE MAF HOUSING
- BIG BORE MAF-SPECIFIC CALIBRATION IS REQUIRED FOR BIG BORE MAF HOUSING
- BIG BORE MAF BASEMAP CALIBRATIONS AVAILABLE IN BOTH HONDATA & KTUNER
- TWO STEP PERFORMANCE "TSP" & PHEARABLE CALIBRATIONS COMPATIBLE BY SELECTING "RACE MAF" OPTION