PRL Motorsports Cold Air Intake Honda Civic Si 2017-2021

Fitment Notes:

• FITS 2017+ HONDA CIVIC SI
• FITS HONDA SENSING PACKAGE
• CANADIAN MODELS REQUIRE USDM WINDSHIELD WASHER RESERVOIR CONVERSION KIT
• NOT COMPATIBLE WITH FACTORY CVT COOLER (SPAIN, TURKEY, ETC)

Please Read Before Ordering:

• NO TUNE REQUIRED FOR STREET MAF HOUSING
• RACE MAF-SPECIFIC TUNE REQUIRED FOR RACE MAF HOUSING
• HONDATA & KTUNER BOTH OFFER RACE MAF BASEMAP CALIBRATIONS

Technical Notes:

There’s a reason our Cobra Cold Air Intake Systems is a constant topic of discussion and so highly regarded. Our 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 Street housing and a Race housing. Both housings utilizes the factory MAF sensor, but feature two different diameters and profiles. As mentioned above, the Street housing is designed to provide factory-spec fuel trims WITHOUT any tuning whatsoever. The Race housing allows a 50% larger volume of air in comparison to the Street 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.

Performance Gains:

• 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 basemap calibration on Hondata and/or KTuner
• Larger gains to be seen at higher power levels with custom tuning 

Kit Includes:

• 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