AEM 10th Gen 17-18+ Honda Civic Si 1.5L 4Cyl Cold Air Intake
The AEM Cold Air Intake for the 10th gen 2017-2018+ Honda Civic Si w/ the 1.5L Turbo motor, helps utilize the stock location and adds a free flowing mandrel bent pipe and high-flow filter to help add 11HP. The less restrictive intake adds more power by allowing more oxygen rich air into the vehicles motor to allow it to create a more powerful combustion cycle. Built to be an easy bolt-on application that also adds that AEM style of clean air intake with a gunmetal piping. The cold air box which helps isolate the filter from the hot motor so it only is drawing in fresh cold air from the front of the car is a welcomed design that helps the car draw in clean air without being placed in a wheel well. This also keeps the vehicle from easily injesting puddle water, for a much worry less application for power.
"Great gains, clean setup and a cold-air box makes for a great choice for any enthusiast wanting to add safe horsepower to their car quickly and easily" -- HARDmotion Team
- Highflow oil-less air filter
- Aluminum intake piping
- Cool air box / ram air setup
Estimated HP Gain: 11hp
Fitment: 2017 2018 2019 Honda Civic Si
Coupe and Sedan
Part #: 21-830C
CARB: is not CARB exempt
Great product
Great shipping, I received the product 2 days before the delivery date. Really easy to install and sounds great! Couldn't be happier with my purchase. Turned my car into a snake lol.
Amazing product
Very fast shipping, easy install and very good looking in wrinkle black. If you want everyone to hear your turbo spool and bypass valve this is definitely for you. Highly satisfied!
None- Si fit amazingly
For anyone wondering if this will fit a none si civic your in luck it fits perfectly buuuuut the intake sensor doesn’t really fit I have one screw on so if a none si owner looking to get this intake keep in mind that you need proper sensor guess it’s a waste a money for me or maybe not lol
Great product
Ordered this Cold Air Intake last Tuesday it arrived within 2 days( live in Alberta Canada). Super easy install and sounds amazing. Paired it with the KTuner V1.2. Woke the car up. Also have the MAPerformance Race Exhaust which is being installed tomorrow which can't wait to do. Went with the MAPerformance CAI over the other brands because to use the PRL Cobra CAI I would have to relocate the windshield washer fluid reservoir. Why Honda has two different locations for American and Canadian Civics makes zero sense. Install took 20 minutes. Highly recommend.
Yes!
I installed this intake this past weekend and I could not be more satisfied with the results. I had also bought an HKS SSQIV BOV which I am in the process of returning. The sound from this intake renders the BOV pointless (for my use at least). Easy install w/ ramps. As soon as my KTuner 2.0 arrives I’ll be loading the MAP Stage 1+ tune which will only make this intake sing louder I’m sure.
Fits all 2017-2021 Civic Si 1.5T
Fits Honda Sensing Package
Canadian Models Require USDM Windshield Washer Reservoir Conversion (Supplied by Teknotik)
Overview
SI STREET INSTALL GUIDE | SI RACE INSTALL GUIDE
Important Notes:
- NO CALIBRATION 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 COMPATIBLE BY SELECTING "RACE MAF" OPTION
- NOT COMPATIBLE WITH FACTORY CVT COOLER (SPAIN, TURKEY, ETC)
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:
- Hondata
- Innovative MotorWorks
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
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.
Here is a graph of the long term fuel trims again with, but with our cold air intake (Street MAF) and factory ECU mapping.
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.
Above is a graph of the short term fuel trims with stock intake w/ air box and factory ECU mapping (stock car).
Here is a short term fuel trim graph with our cold air intake (Street MAF) and factory ECU mapping.
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.
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