L15-6-306-10 Performance Turbo Inlet Pipe

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.

Every turbo inlet pipe has been cast in aluminum and and hand finished to guarantee quality and superior fitment. Due to the artisan casting, every turbo inlet pipe is unique and serialized for authenticity.

The turbo inlet pipe used for these instructions was a pre-production prototype that was not powder coated - installation is identical, but your turbo inlet pipe is powdercoated

Due to the design and pursuit for peak performance, the 27WON Turbo Inlet Pipe does not fit exactly like OEM. To provide you with the easiest & best possible fitment, we have developed silicone couplers to fit the common intake systems currently available

For Intake Removal:

Step 3 for 27WON Intake Systems

Step 3 for PRL & Generic 2.5" Pipe Intake Systems

The OEM Intake system is not compatible with the 27WON turbo inlet pipe

Disconnect the wiring harness from the MAF Sensor

Use a 10mm wrench or socket to loosen the Qty(2) T-bolt clamps circled

Pull the silicone coupler loose from the OEM turbo inlet pipe as shown

Pull the complete silicone and MAF housing assembly from the 27WON cold air box

PRL Intakes

Loosen the clamp at the OEM turbo inlet pipe - typically a flathead screwdriver can be used

Loosen the clamp at the MAF housing - typically a flathead screwdriver can be used

Remove the silicone coupler from the engine bay

Generic Intakes with 2.50in Piping

Loosen both clamps at the OEM turbo inlet pipe - typically a flathead screwdriver can be used

Loosen the clamp that connects the pipe section to the rest of the intake - typically a flathead screwdriver can be used

Disconnect the MAF sensor wire then remove the pipe section from the engine bay

Going forward we will reference the black plastic pipe connected to the turbo as the "Turbo Inlet Pipe (TIP)"

The following components are identified for clarity in the following steps

EVAP Bleed Air Valve

Valve Cover Breather Hose

TIP Mounting Points

Waste Gate Actuator (WGA) Wiring Connection

By-Pass Valve (BPV) Hoses

Use a 10mm socket & ratchet to remove the two (2) 10mm bolts

Pull the EVAP bleed air valve out of the TIP and set to the side

Use pliers to loosen the spring clamps. Slide the clamps towards the center of the hose

Pull the hose off the valve cover first

Pull the hose off the TIP second

Disconnect the wiring from the Waste Gate Actuator (WGA)

Locate the wiring loom

Press down on the small tab and pull the wiring loom from the bracket in the direction of the yellow arrow

Move the wiring harness towards the rear of the car out of the way

Use pliers to loosen the spring clamps. Slide the spring clamps with red circles towards the center of the hose

Pull the BPV hoses off the metal tubes in the direction of the orange arrows

Use pliers to loosen the spring clamp. Slide the clamp towards the center of the of the hose

Pop the hose out of the plastic clip

Pull the hose off the plastic "T". Move the hose towards the front of the car out of the way

Some coolant may spill from the hose and "T" connection

Use a 10mm socket & ratchet to remove the bolt holding the "T" connection

Use a 10mm socket & ratchet or Phillips screwdriver to loosen the worm-gear clamp

Pull the hose off the TIP in the direction of the arrow

Remove the clamp from the hose so it does not get lost in the engine bay

Bend the hose towards the rear of the car. Stuff it into the fender liner out of the way

If you have a 27WON intercooler kit you will not be able to bend the silicone hose

Instead, press the silicone hose under the silver A/C hard line shown with the arrow

Use a 10mm socket & ratchet to remove the two (2) TIP mounting bolts

This mounting bolt will be reused for the installation of the 27WON TIP mounting bracket supplied with the kit.

The next process is to remove the Turbo Inlet Pipe (TIP) from the vehicle.

We will first identify the hardware location and how to remove without losing the hardware in the engine bay

Second, we will show step by step images of physically removing the TIP for PDF users and a quick video for mobile users

Locating the mounting hardware on the TIP can be difficult. Please see the second image for clear identification

The hardware circled in red are bolts. The hardware circled in orange is a nut on a stud

Use a 12mm socket, long extension & ratchet to loosen the three (3) bolts

Use a 12mm socket, long extension & ratchet to loosen one (1) nut

With the bolts loose, but not removed, use the magnet on a stick to remove the bolts from the TIP

Mobile Users proceed to Step 16 for video tutorial

Pull the oil dip stick out a couple inches and flex out of way

Move the TIP towards the passenger side of the vehicle past the oil dip stick

Reinstall the oil dip stick

Move the TIP further towards the passenger side of the vehicle and begin to rotate the top of the TIP towards the front of the vehicle

Continue the rotation of the TIP while moving the TIP up and out of the engine bay

Pull the oil dip stick out a couple inches and flex out of way

Move the TIP towards the passenger side of the vehicle past the oil dip stick

Reinstall the oil dip stick

Move the TIP further towards the passenger side of the vehicle and begin to rotate the top top of the TIP towards the front of the vehicle

Continue the rotation of the TIP while moving the TIP up and out of the engine bay

Using a spray glass cleaner (or equivalent) and rag, clean the surface of the compressor housing face

The surface needs to be dry and smooth for a correct gasket sealing surface

Locate the provided M8 studs

The M8 Flange nut comes pre-installed, remove the nuts

NOTE: Short end of threads goes into the compressor housing

Install the provided M8 stud in the upper location as shown hand tight

If you still have the OEM stud, you can use that stud in the lower location

Two (2) studs are provided if you are missing the OEM stud

Use a 10mm socket & ratchet to remove the two (2) 10mm bolts

Use a 10mm socket & ratchet to remove the one (1) 10mm bolts

Removing the wiring loom cover is tedious and delicate - take your time so you do not break the covers

Using a small flat head screwdriver, pry the tabs out

With the tabs slightly pryed out, you can pull the cover flaps up and out as shown

Using a small flat head screwdriver, pry the "loop" tab up

With the loop tab loose, slide the cover off

The result is just the wastegate actuator connector and exposed wiring

Removing the wiring loom cover is tedious and delicate - take your time so you do not break the covers

There are five (5) tabs that need to be loosened to remove the cover from the wiring loom

Using a small flat head screwdriver, pry the tabs out

Not all tabs are shown

As you pry loose tabs, pull the wiring loom cover apart and hold apart

The wiring loom cover will try to snap back together if you do not hold it apart while loosening all tabs

Using a small flat head screwdriver, pry the tabs out

Not all tabs are shown

As you pry loose tabs, pull the wiring loom cover apart and hold apart

The wiring loom cover will try to snap back together if you do not hold it apart while loosening all tabs

Cut the zip-tie once the wiring loom is fully opened and ready to remove

The result is just the wiring loom "T" location exposed wiring

Locate the provided wiring loom T-cover

Place the the T-cover over the wiring loom as shown

Fold the T-cover closed - it should have a distinct snap when closed and locked

Use a 14mm socket & ratchet to remove the one (1) 14mm bolt and bracket

This bracket and bolt is not reused

Use a 12mm socket & ratchet to remove the one (1) 12mm bolt and bracket

This bolt is reused for the provided 27WON bracket

This bracket is not resused

Review Part A and Part B (Next Step) before proceeding

The lower metal coolant pipe needs to be bent down a small amount to provide clearance for the EVAP Valve

The location shown with the orange mark is where you will bend the metal pipe

Place the open end of a 17mm wrench on the metal pipe at the bend location

Place the open end of a 9mm wrench on the 17mm wrench as shown

The 9mm wrench will be used to twist the 17mm wrench and bend the pipe

While holding the 17mm wrench in your left hand, rotate the 9mm wrench downward

Bend the metal pipe down until the lower rubber hose is below the upper rubber hose - shown in next step

See the small gap between the lower and upper rubber hoses - this is the goal

Once you have verified the lower metal pipe has been bent down far enough then by hand bend the metal pipe towards the back of the car slightly - it will end up under the upper metal pipe as shown

Use a 8mm socket & ratchet to remove the three (3) 8mm bolt

Remove the OEM rubber hose from the BPV

This hose is not reused

Use a 8mm socket & torque wrench to install the three (3) 8mm bolts in the 27WON TIP. Torque to 5-7 ft-lbs

Install the longer provided 4mm silicone hose onto the silver hose barb (not shown on TIP)

Locate the provided gasket

Install the gasket on the compressor face as shown

Installation of the TIP follows the same process for removal in reverse with minor changes due to the size of the 27WON TIP

Lower the TIP into the engine bay with the TIP rotated towards the front of the car

Rotate and lower the TIP into the engine bay then move it towards the driver's side of the engine bay

There will be some interference between the BPV and A/C line while installing

Pull the oil dip stick out a couple inches and flex out of way

Move the TIP further to the driver's side while sliding the TIP over the two (2) studs in the compressor housing

Reinstall the oil dip stick

An installed OEM and 27WON TIP is shown out of the car for clarity

Locate the provided two (2) M8x80mm flange bolts

The two (2) orange circles show the locations of the 13mm flange nuts

The two (2) yellow circles show the locations of the provide long 12mm flange bolts

Tighten the hardware and torque to 15-19 ft-lbs

Locate the two (2) metal BPV pipes near the TIP as shown

In the following instructions - bend the metal pipes in small increments then check clearance

Using the closed end of a box-end wrench, thread the metal pipe through the close end then use the wrench to bend the metal pipe

Bend the small lower metal pipe away from the TIP as shown - approximately 3/4" clearance is desired

Bend the large upper metal pipe away from the TIP as shown - approximately 3/4" clearance is desired

Align the bolt hole with the threaded insert in the valve cover then check clearance between the TIP and metal BPV pipes

Continue the orange, yellow & green instructions as needed until sufficient clearance is achieved

Use a 10mm socket & torque wrench to install the three (3) mounting bolts. Torque to 8-10 ft-lbs

Install the short silicone hose onto the BPV hose barb (red circle)

Install the short silicone hose onto the small bent metal pipe (red arrow)

Install the long silicone hose onto the large bent metal pipe (orange arrow)

The other end is already attached to the TIP at the silver hose barb connection in step 27

Re-install the intercooler hose onto the TIP as shown

Using a 10mm socket & ratchet, tighten the clamp until the intercooler hose bulges slightly

Where gloves and be cautious of where you are directing heat when using a heat gun

You do not want to burn or melt any wiring or connections while doing this process

Take your time apply just enough heat to constrict the shrink wrap

Locate the provided heat shrink wrap section

Slide the heat shrink tubing over the WGA connector as shown

Align the edge of the heat shrink tubing so that it overlaps the connector slightly as shown

Using a heat gun - direct heat to the section closest to the connector to start constricting the shrink wrap around the connector

Where gloves and be cautious of where you are directing heat when using a heat gun

You do not want to burn or melt any wiring or connections while doing this process

Take your time apply just enough heat to constrict the shrink wrap

As the shrink wrap constricts - work your way down the wire to shrink the entire section as shown

Connect the wiring to the WGA as shown

Apply a little more heat to the end of the shrink wrap if there is a small gap

A tiny gap is shown - try to shrink the wrap to this or smaller gap

Locate the provided loop clamp

The M4 socket cap screw is already install in the turbo inlet pipe

Slide the loop clamp over the wiring harness as shown

Align the loop clamp mounting hole with the mounting peg on the TIP

Using a 3mm Allen key, install M4 socket cap screw into the loop clamp and TIP

Tighten until snug - you need very little force here

Use a 10mm socket to install the bolt holding the "T" connection. Torque to 8-10 ft-lbs

Pop the hose into the plastic clip

Push the hose onto the plastic "T"

Use pliers to install the spring clamp at the end of the coolant hose around the "T" connection

Locate the shown rubber mounting isolator on the OEM TIP

Press the silver metal collar out first

Squeeze the rubber isolator and pull out sideways

Locate the provided mounting bracket

Locate the 12mm OEM bolt that was holding the original mounting bracket

Press in the rubber isolator in the same way it was removed

Press in the silver metal collar exactly as shown

Locate the area shown - this is where the mounting bracket will be installed

Hand thread the OE TIP bolt through the isolator into the 27WON TIP

Hand thread the OE 12mm flange bolt through the bracket into the cylinder head

Use a 10mm wrench. Tighten until snug or approximately 8-10 ft-lbs

Use a 12mm wrench. Tighten until snug or approximately 12-14 ft-lbs

Install the provided brown o-ring over the EVAP valve as shown

Verify both o-rings are clean

Apply a very light layer of silicone lubricant spray to the brown o-ring

Press the EVAP Valve into the turbo inlet pipe

Verify the EVAP Valve or hoses are not rubbing on anything

Use a 10mm socket & torque wrench to install the two (2) 10mm bolts. Torque to 8-10 ft-lbs

Locate the 27WON valve cover breather hose - the "W" should be facing the front of the vehicle when installed

Place QTY(1) worm gear clamp on each end of the silicone hose

Push the hose onto the valve cover first

Push the hose onto the black hose barb on the turbo inlet pipe second

Use a flat head screwdriver to tighten the worm gear clamps - tighten until the silicone bulges slightly

This step is provided before you install your intake system so that you are aware and do not have to redo work

Failure position the T-Bolt clamp as shown may damage the hood

For all intake fitment options - verify the provide T-bolt clamp is position as shown

There should be clearance between the EVAP Valve and the T-bolt clamp as shown

If the T-bolt clamp is rotated forward (CCW in image) too far it may contact the hood

Due to the design and pursuit for peak performance, the 27WON Turbo Inlet Pipe does not fit exactly like OEM. To provide you with the easiest & best possible fitment, we have developed silicone couplers to fit the common intake systems currently available

For Intake Installation:

Step 44 for 27WON Intake Systems

Step 45 for PRL Intake Systems

Step 46 for Generic 2.5" Pipe Intake Systems

The provided 27WON T-Bolt Clamp will be used on the TIP

Replace the TIP side silicone with the new provided 27WON silicone

Slide the MAF/Silicone assembly onto the airbox first

Then slide the MAF/Silicone assembly onto the TIP

Rotate the new TIP coupler until both the MAF housing and TIP have good fitment

Using a 10mm socket and ratchet, tighten the T-bolt clamps until the silicone bulges slightly

Connect the wiring harness to the MAF sensor

The provided 27WON T-Bolt Clamp will be used on the TIP

The clamp that originally came installed on the PRL intake will be used on the MAF housing

Place the clamps on the 27WON coupler before installing on the vehicle

Slide the silicone coupler onto the MAF housing first

Slide the silicone coupler onto the TIP next

Rotate the coupler until both the MAF housing and TIP have good fitment

Using a flathead screwdriver, tighten the band clamp until the silicone bulges slightly

Using a 10mm socket and ratchet, tighten the T-bolt clamp until the silicone bulges slightly

Generic fitment has not been confirmed as of writing these instructions. Installation will be similar to the previous examples.

If you have received a 27WON Turbo Inlet Pipe for an intake besides 27WON or PRL please give us a call.

Given the unique and artisan nature of the 27WON Turbo Inlet Pipe, we hope we were able to REDEFINE your experience and expectations of the aftermarket.

Every turbo inlet pipe has been cast in aluminum and and hand finished to guarantee quality and superior fitment.

If you have received a 27WON Turbo Inlet Pipe that you feel does not live up to the high standard 27WON strives for, then please give us a call. We want to hear your feedback and get you setup with the quality you expect. Thank You

Using genuine Honda coolant, fill the coolant reservoir to MAX

A larger performance turbo inlet pipe will create more pronounced turbo induction noises, your gas mileage may drop significantly for the first few tanks from you constantly wanting to hear the turbo spool

To get the best performance from your Turbo Inlet Pipe, we highly recommend a custom tune

A custom tune for your specific vehicle with your specific modifications will provide the best performance for your Civic and the location you live in

This completes the installation of your 27WON Performance Turbo Inlet Pipe

We hope you were impressed with your 27WON experience and love your new W1 Turbo for years to come. Email us at sales@27won.com or call us at 571-271-0271 with any questions or concerns

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