1.5T PRL Motorsports Cobra CAI Install

PRL Motorsports

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For anyone wondering, here is our installation writeup for our 1.5T Cobra CAI. This intake system fits both Si and Non-Si 1.5L Turbo Civic applications.

Honda Civic 10th gen PRL Motorsports Cobra CAI Install RaceMafIntakeAssembled_zpsf7gwhzuw


Tools Needed:
Ratchet
10mm socket
8mm socket
Extension
10mm wrench
Flathead screwdriver
Phillips-head screwdriver
3mm hex-key / Allen wrench
5mm hex-key / Allen wrench

Torque Specs:
M6 bolts = 120 inch/lbs

We recommend raising the front end of the car at 18-24" off the ground for comfort.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1376_zpssqgw5sx8


Remove the two Phillips-head screws towards the front lower half of the wheel-well that attach the bumper to the inner fender liner.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1377_zps5ohwdize


Remove these two 10mm bolts that hold the undershieding on.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1378_zpsms32feq

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1387_zpsqbpwyyic


Remove these two clips by popping the middle circular clip with a flathead screwdriver.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1379_zpsfodyunrx


Remove this plastic clip in the same fashion as the last two.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1382_zpsgmopfyrz


Pull the undershield/inner fender liner back towards front wheel to expose the area behind the bumper.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1454_zpsoqo86lxq


Remove the two Phillips-head scews that attach the MAF sensor to the MAF housing. Apply pressure to the screws with the screwdriver to avoid rounding out and stripping the heads of the screws.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1389_zpsk6li1v2v


Pop the wiring harness clip from the upper air box by pushing both sides in with a flathead screwdriver.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1391_zpskxk9iy7z

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1390_zpsolppv3gx

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1393_zpsiqfkx3fi


Once this is removed, set the MAF sensor and harness aside for later use.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1395_zpshgwuk35a


Loosen both clamps and remove the air hose.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1396_zpshvqwax34


Loosen the four bolts/scews and remove the upper air box cover.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install 088479c8-75dc-4378-92ea-fe4e0aca7565_zpszqhliqkw


Remove the air filter.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1400_zpsiupmcmhi

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1401_zpsa2fj9jp8


Loosen the two 10mm Bolts and push the lower air box piece towards the front of the car to separate it from the dampener's rubber nipple below.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install 8e523e33-b9c6-4ace-b280-338fdbbe2a92_zpsqkrebkm


Remove the two 10mm bolts that attach the lower air box bracket to the chassis
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1409_zpsqdbsbuhf

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1412_zps2wuuyjsc


You should now see the dampener below where the air box unit once was. We already had this removed for our FMIC piping, so we do not have this. The unit goes together like followed:
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1404_zpsovmteesm

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1406_zpsmwjaq5d2


Remove the two 10mm bolts to remove the dampener. It is a rather tight fit, so it will take some fighting and angling, but this can be removed.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1407_zpsxovzwjsy


Remove the 10mm bolt that attaches the factory clutch line bracket to the chassis. You will notice that the bracket has a locating tab.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1413_zpspcaapsz5


Install the billet clutch line relocation bracket with the supplied M6x16 socket head cap screw using the locating tab. Attach the factory clutch line to the relocation bracket using a supplied M6x12 flange bolt using the locating tab.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1420_zpssjmaavw

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1424_zpsuqd2fo7h

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Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1432_zpsgc9agkta


Loosely attach the lower bracket to the bottom of the rotomolded intake piece with two M6x12 bolts. Do not put the filter on yet, as installation is much easier without this attached. We only have the filter on for location reference.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1436_zpspqrofwf

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Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1438_zpstfs1avwd


Loosely attach the lower bracket to the chassis with two M6x16 bolts. One bolt will be threaded to the chassis. The other will be threaded through the untapped square hole into the nylock nut behind this.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1464_zpsv5sljus5

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1465_zpslalnpuj9

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1466_zps3effduok


Loosely attach the upper bracket to the rotomolded intake piece with an M6x12 bolt and loosely attach the bracket to the chassis with two M6x12 bolts.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1443_zpssyroq7ph


Loosely attach the 4" silicone hose to the rotomolded intake piece with both 4" clamps oriented in an accessable area.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1461a_zpsvrb0hemd


Loosely attach the upper intake hose to the billet MAF sensor housing with the radius of the hose angled up.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1450_zpsav45nmh

Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1448_zps2hii3s6b


Loosely attach the 4" side of the billet MAF sensor housing to the 4" silicone hose and finish attaching the connected assembly to the factory black plastic intake pipe.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1459a_zpsra1vchww


Locate the rotomolded intake piece with your hand while checking for fitment. Once fitment is as desired, the brackets can be tightened down starting with the lower bracket. Rotate any silicone hoses if needed and tighten all clamps. Be sure that silicone connections are butted against their designated receiving grooves for optimal airflow.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1458a_zpsnkky4my


Attach the MAF sensor to the billet MAF sensor housing using the two supplied M4x8 socket head cap screws. Do not over tighten the M4 SHCS bolts, as these only need to be snug.

Attach the air filter to the rotomolded intake piece.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1463a_zpsnnkwy8sr


Push the undershield/inner fender liner back in place and attach all plastic clips and 10mm screws that were removed.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1454_zpsoqo86lxq


Lower the car back onto the ground and check for any loose connections.
Honda Civic 10th gen PRL Motorsports Cobra CAI Install DSCN1466_zps3effduok


Street MAF housings do NOT require custom ECU tuning. Race MAF sensor housings require custom ECU tuning due to its 50% increase in size over factory.
 


OP
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PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Threads
113
Messages
1,575
Reaction score
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Location
Export, PA
Website
prlmotorsports.com
Vehicle(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
Last edited:


JDM_DOHC_SiR

Uncle Dave
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The Quality of this intake is on another level!!:bow:@PRL Motorsports :thumbsup: Glad I have mine on order :D
 


 


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