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R1.20

Minor Versionm

by Rich Harris

Introduction

In this installation guide we have provided step by step instructions to setup, remove the OEM intake system, and install the 27WON Performance Cold Air Intake.

Advisory:

  • Working under the vehicle requires a safe and sturdy location for the vehicle to sit on jackstands.
  • The engine bay will be hot after recent vehicle operation. Allow the vehicle to cool or use a fan to cool the engine bay before working on the vehicle.
  1. First and foremost; THANK YOU for becoming a part of the 27WON Family.  We hope to REDEFINE your experience of the aftermarket with the highest level Parts, Customer Service, Packaging, & Support
    • First and foremost; THANK YOU for becoming a part of the 27WON Family. We hope to REDEFINE your experience of the aftermarket with the highest level Parts, Customer Service, Packaging, & Support

    • Aftermarket transmission coolers may not fit with our intake

  2. Locate the engine under tray to gain access to the OE lower airbox
    • Locate the engine under tray to gain access to the OE lower airbox

    • Use 5mm Allen Key to remove the two (2) bolts shown in green circles

    • Use 10mm socket & ratchet to remove the seven (7) bolts shown in red circles

    • Use a flathead screwdriver to remove the seventeen (17) plastic push-clips. Orange arrows identify the push-clips in described in the next step (3)

  3. Use large flat head screw driver to remove push-clips on each side of skidtray Use large flat head screw driver to remove push-clips on each side of skidtray
    • Use large flat head screw driver to remove push-clips on each side of skidtray

  4. Disconnect the wiring harness from the MAF Sensor Remove the wire cover from the airbox Use needle noise pliers to pinch the clips then pull the cover off the airbox
    • Disconnect the wiring harness from the MAF Sensor

    • Remove the wire cover from the airbox

    • Use needle noise pliers to pinch the clips then pull the cover off the airbox

  5. The MAF wire cover consist of two halves that are held together by push lock clips.  These will need to be unlocked to remove the cover Step 6 will show how to pull apart MAF wire cover
    • The MAF wire cover consist of two halves that are held together by push lock clips. These will need to be unlocked to remove the cover

    • Step 6 will show how to pull apart MAF wire cover

  6. Using small flathead screwdriver, gently pry between the square loop and the prong, then pry the prong out of the loop It takes very little force to insert the flathead screwdriver and pry loose, try not to break the square loop
    • Using small flathead screwdriver, gently pry between the square loop and the prong, then pry the prong out of the loop

    • It takes very little force to insert the flathead screwdriver and pry loose, try not to break the square loop

    • With all four prongs unlocked the cover should open as shown

    • Pull the wire out of the cover and wrap the exposed section in electrical tape

  7. Use a small Phillips screwdriver to remove the two screws
    • Use a small Phillips screwdriver to remove the two screws

    • Remove the MAF sensor from the airbox and reinstall the OE screws into the airbox, they are not used in the 27WON CAI

    • Base Model MAF Sensor shown, SI MAF Sensor removal is same

  8. Use a 5.5mm socket to loosen the hose clamp
    • Use a 5.5mm socket to loosen the hose clamp

    • A small phillips screwdriver can be used, but is not recommend because the hose clamp head strips easily

  9. Use a 10mm socket and long extension to unthread the two silver mounting bolts
    • Use a 10mm socket and long extension to unthread the two silver mounting bolts

    • You can leave the bolts loose in position during airbox removal

  10. Pull the hose off the turbo inlet pipe in the direction of the arrow With the hose loose, remove the entire airbox from the engine bay
    • Pull the hose off the turbo inlet pipe in the direction of the arrow

    • With the hose loose, remove the entire airbox from the engine bay

    • The result will look as shown in the second image

  11. From under the vehicle locate the two bolts, use a 10mm socket & ratchet to remove the two bolts Remove the lower airbox assembly from the vehicle
    • From under the vehicle locate the two bolts, use a 10mm socket & ratchet to remove the two bolts

    • Remove the lower airbox assembly from the vehicle

    • The result will look as shown in the second image

  12. From under the vehicle, locate lower airbox assembly mounting bracket
    • From under the vehicle, locate lower airbox assembly mounting bracket

    • Use a 10mm socket & ratchet to remove the bolt

    • Remove the bracket from the vehicle

  13. The red square shows where the lower inlet of the airbox will sit in the engine bay and fender well
    • The red square shows where the lower inlet of the airbox will sit in the engine bay and fender well

  14. Locate the provided rubber isolator standoff for step 15 Locate the provided rubber dampener for step 16
    • Locate the provided rubber isolator standoff for step 15

    • Locate the provided rubber dampener for step 16

  15. Locate threaded hole in the core support for manual transmissions Locate threaded hole in the core support for Automatic transmissions Install the rubber isolator standoff in the threaded hole closest to the turbocharger. Tighten hand tight using your fingers
    • Locate threaded hole in the core support for manual transmissions

    • Locate threaded hole in the core support for Automatic transmissions

    • Install the rubber isolator standoff in the threaded hole closest to the turbocharger. Tighten hand tight using your fingers

    • There are two threaded holes located in the core support, use the hole closest to the turbocharger. Don't use the hole marked in yellow

  16. Locate threaded hole in the bracket for manual transmissions Locate threaded hole in the bracket for Automatic transmissions Install the rubber dampener in the threaded hole found in the bracket, tight hand tight with fingers
    • Locate threaded hole in the bracket for manual transmissions

    • Locate threaded hole in the bracket for Automatic transmissions

    • Install the rubber dampener in the threaded hole found in the bracket, tight hand tight with fingers

    • The bracket is mounted to the chassis rail next to the ECU

  17. Carefully pry the 9 plastic clips open with a flat head screw driver
    • Carefully pry the 9 plastic clips open with a flat head screw driver

    • Clips are fragile and can easily break if to much force is applied

  18. Locate the OE Airbox Assembly Identify one of the OE rubber mounts and remove the OE bolt (the bolt should be loose in the mount) Keep this bolt, it will be used later
    • Locate the OE Airbox Assembly

    • Identify one of the OE rubber mounts and remove the OE bolt (the bolt should be loose in the mount)

    • Keep this bolt, it will be used later

    • Press the metal collar out of the rubber mount with your hands.

    • Pinch the rubber mount together then remove the rubber mount from the OE airbox assembly

  19. Locate the Long Bracket Locate the Short Bracket Locate QTY=4 M5x0.8x12mm Hex Head Bolts
    • Locate the Long Bracket

    • Locate the Short Bracket

    • Locate QTY=4 M5x0.8x12mm Hex Head Bolts

  20. Install the OE rubber mount and steel collar as shown
    • Install the OE rubber mount and steel collar as shown

  21. Use a 3mm Allen Key to remove the four flanged button head bolts holding the lid on Remove the protective cover on the lid and set the lid aside on a non-abrasive surface
    • Use a 3mm Allen Key to remove the four flanged button head bolts holding the lid on

    • Remove the protective cover on the lid and set the lid aside on a non-abrasive surface

    • Unwanted scratches could occur if lid is not handled with care

    • With the lid removed you now have access to the air filter and the inner airbox mounting location

  22. Using a 8mm socket and ratchet, install the bracket as shown Torque bolts to 24-48 in-lbs
    • Using a 8mm socket and ratchet, install the bracket as shown

    • Torque bolts to 24-48 in-lbs

  23. Locate the OE airbox mounting bolt Locate the provided QTY=1 M6x1.0 Flange Nut Locate the provided QTY=1 M6x1.0 Hex Head Bolt
    • Locate the OE airbox mounting bolt

    • Locate the provided QTY=1 M6x1.0 Flange Nut

    • Locate the provided QTY=1 M6x1.0 Hex Head Bolt

  24. This Clearance warning applies to vehicles with automatic  transmissions. Skip step if vehicle has a manual transmission. Inside the orange box there are multiple tight clearances due to the CVT.
    • This Clearance warning applies to vehicles with automatic transmissions. Skip step if vehicle has a manual transmission.

    • Inside the orange box there are multiple tight clearances due to the CVT.

    • Be careful not to run into this sensor. The airbox will clear the sensor but carelessness when inserting the box could damage the sensor

    • The bottom of the airbox fits right into this square opening

    • In some cars, airbox may touch this sensor. It is ok. Give us a call if this concerns you

    • Be careful not to run into the transmission cooler. The airbox will clear the cooler but carelessness when inserting the airbox could damage the airbox

    • Aftermarket transmission coolers may not fit with our intake

  25. Before positioning the 27WON airbox into the engine bay, please identify the correct mounting locations Manual transmission inner airbox mounting point
    • Before positioning the 27WON airbox into the engine bay, please identify the correct mounting locations

    • Manual transmission inner airbox mounting point

    • Manual transmission long bracket mounting point

    • Manual transmission short bracket mounting point

    • Automatic transmission inner airbox mounting point

    • Automatic transmission long bracket mounting point

    • Automatic transmission short bracket mounting point

  26. Lower the 27WON airbox into the engine in the orientation shown. Swivel the airbox into position
    • Lower the 27WON airbox into the engine in the orientation shown.

    • Swivel the airbox into position

  27. Now that the airbox is in position. Attach the provided short bracket to the airbox with (2) M5x0.8X12mm hex head bolts and a 8mm wrench Aline the slotted end of the short bracket onto the rubber isolator Thread the provided M6x1.0 flange nut onto the rubber isolator. The nut should be loose enough to allow the airbox to still slide within the slotted hole
    • Now that the airbox is in position. Attach the provided short bracket to the airbox with (2) M5x0.8X12mm hex head bolts and a 8mm wrench

    • Aline the slotted end of the short bracket onto the rubber isolator

    • Thread the provided M6x1.0 flange nut onto the rubber isolator. The nut should be loose enough to allow the airbox to still slide within the slotted hole

  28. Aline the inner hole with the hole in the rubber dampener and insert the provided hex head M6x8mm bolt. Tighten using a 10mm socket with an extension and a ratchet
    • Aline the inner hole with the hole in the rubber dampener and insert the provided hex head M6x8mm bolt. Tighten using a 10mm socket with an extension and a ratchet

    • Tighten the bolt to 12-24 in-lbs

    • Do not over tighten the bolt. This could damage the airbox.

  29. Aline on the Long bracket with the threaded hole in the chassis Insert the OE bolt into the long bracket
    • Aline on the Long bracket with the threaded hole in the chassis

    • Insert the OE bolt into the long bracket

    • Tighten with a 10mm socket with extension and ratchet, Torque the OE bolt in the long bracket to 36-48 in-lbs

  30. Tighten the M6x1.0 flange nut on the rubber isolator using a 10mm socket and ratchet to 24-36 in-lbs
    • Tighten the M6x1.0 flange nut on the rubber isolator using a 10mm socket and ratchet to 24-36 in-lbs

  31. Place the airbox lid onto the airbox
    • Place the airbox lid onto the airbox

    • Install the four M5x0.5x16mm flanged button head bolts, Tighten the bolts to 12 in-lbs

    • The lid can crack if significantly over-tightened.

    • If the holes in the lid do not want to align exactly with the threaded inserts, you can lightly twist/push the airbox. The mounting process can distort the shape of the bow slightly. This is nothing to worry about

  32. The MAF housing comes assembled with the necessary MAF sensor installation hardware The MAF housing has a small cutout at the top for the wiring harness.  This cutout will face the rear of the vehicle once installed Silicone coupler between the MAF housing and the OE turbo inlet pipe
    • The MAF housing comes assembled with the necessary MAF sensor installation hardware

    • The MAF housing has a small cutout at the top for the wiring harness. This cutout will face the rear of the vehicle once installed

    • Silicone coupler between the MAF housing and the OE turbo inlet pipe

    • Silicone coupler between the MAF housing and the airbox

    • On both silicone couplers there is a "W" logo. The bottom of the "W" will face the front of the vehicle once installed

  33. Use a 3mm Allen Key to remove the socket cap bolts from the MAF housing
    • Use a 3mm Allen Key to remove the socket cap bolts from the MAF housing

    • Install the MAF sensor into the housing

    • If you are having issues, push the sensor into the housing while turning the sensor, this should help

    • Be careful to not pinch and damage the o-ring on the sensor

    • Align the sensor with the stainless steel standoff and install the socket cap bolts

    • Torque the socket cap bolts to 24-48 in-lbs

  34. Locate the provided QTY=1 67-75mm clamps. Locate the provided QTY=1 86-94mm clamp The 108-116mm clamp is already installed on the air filter
    • Locate the provided QTY=1 67-75mm clamps.

    • Locate the provided QTY=1 86-94mm clamp

    • The 108-116mm clamp is already installed on the air filter

  35. Verify that your MAF & Silicone Assembly has came as shown
    • Verify that your MAF & Silicone Assembly has came as shown

    • Install the 67-75mm clamp loose as shown

    • Install the 86-94mm clamp loose as shown

    • A small gap between the end of the silicone and the MAF housing is normal. This is required for proper connection of the internal step in the silicone

  36. Angle the MAF & Silicone assembly into the engine bay and onto the airbox
    • Angle the MAF & Silicone assembly into the engine bay and onto the airbox

    • Verify the silicone coupler connecting to the airbox is over the circumference of the airbox outlet

  37. Pivot the MAF & Silicone assembly down and onto the turbo inlet pipe
    • Pivot the MAF & Silicone assembly down and onto the turbo inlet pipe

    • The silicone coupler is flexible enough to bend and distort as needed to fit over the turbo inlet pipe

    • Adjust the silicone coupler to fit around the entrance of the turbo inlet pipe

  38. If needed, rotate the MAF & Silicone assembly so the MAF sensor and "W" are facing upward as shown
    • If needed, rotate the MAF & Silicone assembly so the MAF sensor and "W" are facing upward as shown

    • Use a 10mm wrench or socket and wrench to tighten the 86-94mm clamp on the airbox

    • Use a 10mm wrench or socket and wrench to tighten the 67-75mm clamp on the turbo inlet pipe

    • Tighten the clamps until snug (the silicone will start to bulge at the edge of the clamp slightly)

  39. Connect the wiring harness to the MAF sensor as shown Check clearance of the clamp at the turbo inlet pipe, verify there is approximately 3/4" clearance from the end of the T-bolt rod to the core support. Rotate clamp to adjust if necessary
    • Connect the wiring harness to the MAF sensor as shown

    • Check clearance of the clamp at the turbo inlet pipe, verify there is approximately 3/4" clearance from the end of the T-bolt rod to the core support. Rotate clamp to adjust if necessary

  40. Reinstall radiator fan guard by inserting the 9 plastic clips and pressing down on them with your thumb
    • Reinstall radiator fan guard by inserting the 9 plastic clips and pressing down on them with your thumb

  41. Re-install the 10mm bolts with a 10mm socket & torque wrench.  Torque to 8-12 ft-lbs
    • Re-install the 10mm bolts with a 10mm socket & torque wrench. Torque to 8-12 ft-lbs

    • Re-install the 5mm socket flange bolts with the 5mm Allen key & torque wrench. Torque to 6-8 ft-lbs

    • Re-install the push clips at the bottom of the undertray and the sides (shown in Step 2)

  42. Re-install the push clips at the side of the undertray Re-install the push clips at the side of the undertray
    • Re-install the push clips at the side of the undertray

  43. This completes the installation of your 27WON Performance Cold Air Intake System.
    • This completes the installation of your 27WON Performance Cold Air Intake System.

    • We hope you were impressed with your 27WON experience and love your new Cold Air Intake for years to come. Email us at sales@27won.com or call us at 571-271-0271 with any questions or concerns

    • We recommend going to the next step to learn how to service the air filter or check our video on cleaning the air filter at https://youtu.be/nE7diTeI4Gw

    • Please Leave a review here: https://store.27won.com/10th-gen-civic-c...

    • Share your experience using #27WON on Instagram and Facebook

  44. The next step explains how to remove and reinstall your air filter for cleaning and service.
    • The next step explains how to remove and reinstall your air filter for cleaning and service.

    • When re-installing your air filter be careful not to compress the velocity stack on the air box to a point of deformation. Doing so can cause the air box to crack and the air filter to fall off

  45. Here we show how to remove the air filter for standard maintenence Use a 3mm Allen Key to remove the four bolts, then remove the airbox lid
    • Here we show how to remove the air filter for standard maintenence

    • Use a 3mm Allen Key to remove the four bolts, then remove the airbox lid

    • Use a 10mm socket and wrench to loosen the clamp

    • Pull the air filter off the airbox velocity stack then pull the filter straight up and out of the airbox

    • The air filter is a tight squeeze to remove, do not worry if the airbox or air filter flex or distorts slightly

    • Reinstall the air filter in the reverse order.

    • Hold the air filter tight against the airbox velocity stack and tighten the clamp snug. Verify the air filter cannot be pulled loose with a gentle tug

    • Verify that the T-bolt rod is not protruded past the top of the airbox, this would damage the airbox lid

Finish Line

Dozuki System

Member since: 09/24/2009

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