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PRL Motorsports LLC
2017+ Honda Civic Si 1.5T Cobra Cold Air Intake System
Fits 2017+ Honda Civic 1.5T Si Chassis

$399.99
- $40.00 (10 %)
$359.99
MAF Options:
Click to Enlarge Image

Product Description



Please Read Before Ordering:

  • NO TUNE OR CALIBRATION REQUIRED FOR STREET MAF HOUSING
  • RACE MAF-SPECIFIC CALIBRATION OR TUNE IS REQUIRED FOR RACE MAF HOUSING
  • HONDATA & KTUNER BOTH OFFER RACE MAF BASEMAP CALIBRATIONS
  • TWO STEP PERFORMANCE "TSP" TUNE COMPATIBLE BY SELECTING "RACE MAF" OPTION


Fitment Notes:


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.

Customers can switch between MAF housings without having to buy another intake system by purchasing our MAF Housing Conversion Kit

Customers can convert to a Short Ram Intake with our Short Ram Intake Conversion Kit

Performance Gains:

  • 15 horsepower and 12 ft/lb torque gains in comparison to stock with Street MAF housing WITHOUT TUNE - Read More Here!
  • 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 – Read More Here!
  • Larger gains to be seen at higher power levels with custom tuning

Third Party Testing:

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

SILICONE IS ONLY AVAILABLE IN BLACK – UPPER HOSE IS DIFFERENT THAN OUR “STAGE 1” SILICONE


 photo Civic x L.trim stock intake and stock tune_zpsf1d7zfq3.jpg
Above is a graph of the long term fuel trims with the stock intake w/ air box and factory ECU mapping, or in other words a bone-stock car.



 photo Civic x L.trim PRL intake and stock tune_zpscgiprogu.jpg
Here is a graph of the long term fuel trims again with, but with our cold air intake (Street MAF) and factory ECU mapping.


 photo Civic x L.trim PRL intake and Hondata 6psi tune_zpssf6dz8bb.jpg
This is another long term fuel trim graph, but with our cold air intake (Street MAF) and +6psi Hondata off-the-shelf map.

Notice how consistent and similar all of the LTFT graphs are. Each graph is within -4 LTFT.


 photo Civic x S.trim stock intake and stock tune_zpsmifcsitc.jpg
Above is a graph of the short term fuel trims with stock intake w/ air box and factory ECU mapping (stock car).

 photo Civic x S.trim PRL intake and stock tune_zpssc3rykye.jpg 
Here is a short term fuel trim graph with our cold air intake (Street MAF) and factory ECU mapping.



 photo Civic x S.trim PRL intake and Hondata 6psi tune_zpsumoiyfjm.jpg
This is another graph of the short term fuel trims with our cold air intake (Street MAF) and +6psi Hondata off-the-shelf map.

All of the STFT graphs display identical curves and consistency.

Product Reviews

(25 Ratings, 10 Reviews) Average Rating:
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Great Product, Great Customer Service!
Dennis Velasco (Cherry Point, NC) 7/12/2020 8:42 AM
I want to start off by saying thank you to S. Melillo. Great Customer Service! 10/10 Service 10/10 Fast Shipping 10/10 Product Love the sound of the intake and noticed better throttle response. Highly recommend!
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THE BADDEST INTAKE ON THE MARKET
Chris (Portland, Oregon) 6/16/2020 12:17 PM
If you hydrolock this absolutely bad-ass intake you also enjoy urinating into the wild while drinking a warm lite beer. BUY THIS NOW!
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Do yourself a favor and buy this intake!
Andrew Stout (San Clemente, CA) 2/16/2019 9:49 PM
I could not be any happier! First off, the car sounds amazing and you can really hear the turbo! Anyone that's debating getting a BOV should buy this instead. In addition to getting the desired turbo sounds you're obviously also getting the functionality of the cold air that our cars so desperately yearn for. Well worth the money!
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Worth every cent!
Peyton Start (Canonsburg, PA) 12/29/2018 10:55 AM
This intake is incredible! High quality build with a fairly easy install. The longest part about the install is just removing the plastic clips from under the car. Other than that, it's very simple and takes a short amount of time! I'll continue to buy from PRL in the future!
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Just a great product.
Chris Falenski (Hertford, NC) 12/20/2018 12:26 AM
Super nice quality, sound, and appearance. So glad I got this intake. Also prl has some great customer service too.