PRL Motorsports Cobra Cold Air Intake System for 17-21 Honda Civic Si 1.5T (PRL-HC10-INT-CAI-B)

There's a reason why our Cobra Cold Air Intake Systems are so well-liked and frequently discussed. For the best drivability and performance, our CNC-machined billet aluminum MAF Housing was created to deliver *factory-spec fuel trims (-4% of factory STFT & LTFT). The Cobra CAI uses a 4" volume from the air filter into the MAF Housing and offers two different MAF housing options: Street housing and Race housing. Both housings utilize the factory MAF sensor but feature two different diameters and profiles. As previously mentioned, the Street housing is designed to provide factory-spec fuel trims WITHOUT ANY tuning. A tune IS necessary because the Race housing admits a 50% greater volume of air than the Street housing. The MAF housing is fed with ambient temperature air thanks to the increased airflow volume, which also lowers pumping loss and produces an open-air path.

NOTES

• NO CALIBRATION IS REQUIRED FOR STREET MAF HOUSING
• RACE MAF-SPECIFIC CALIBRATION IS REQUIRED FOR RACE MAF HOUSING
• RACE MAF BASEMAP CALIBRATIONS AVAILABLE IN BOTH HONDATA & KTUNER
• TWO-STEP PERFORMANCE "TSP" & PHEARABLE CALIBRATIONS ARE COMPATIBLE BY SELECTING THE "RACE MAF" OPTION
• NOT COMPATIBLE WITH FACTORY CVT COOLER (SPAIN, TURKEY, ETC)
• Canadian Models Require USDM Windshield Washer Reservoir Conversion (Supplied by Teknotik)

APPLICATIONS

• Civic Si 1.5T (2017, 2018, 2019, 2020, 2021)

FEATURES

• 15 horsepower and 12 ft/lb torque gains in comparison to stock with Street MAF housing WITHOUT TUNE
• 20 horsepower and 15 ft/lb torque gains in comparison to stock with Race MAF housing WITH Race MAF base map calibration on Hondata and/or KTuner
• Larger gains to be seen at higher power levels with custom tuning
• Fits all 2017-2021 Civic Si 1.5T
• Fits Honda Sensing Package

WHAT'S IN THE BOX?

• Billet Aluminum MAF Housing (Anodized Black)
• PRL Motorsports High Flow Oiled Cone Air Filter
• (1) 4-Ply Upper Silicone Intake Hose (Race or Street)
• (1) 6-Ply Lower Silicone Intake Hose
• HDPE Rotomolded Lower Intake Tube
• (4) 304 Stainless Steel Worm Clamps
• Stainless Steel Mounting Brackets
• Stainless Steel Hardware