RV6 Performance Downpipe Instillation Guide

TheShadow

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RV6 Performance Downpipe Install Guide

This is an install guide written for the RV6 Performance downpipe for the 2017+ FK8 Civic Type R. This is a 3" downpipe made from 304 stainless steel with 304 stainless cast transition sections and a 200 cell high flow catalytic converter. Black and silver ceramic coatings are also available to help minimize heat transfer to the engine bay.

More specifically this guide details a high temperature catted downpipe with silver ceramic coating installed on a 2017 Type R, #00561. This car had no engine modifications and a stock exhaust. All removal instructions reference stock components but the process would be similar for removing other aftermarket components such as an air intake. This process will be the same when installing a catless down pipe. It also may not be required to remove all of the components discussed in this procedure, but removal will give more space to work in.

Always perform auto work in a safe manner. Never work underneath a vehicle without appropriate retention devices (jack stands or a lift.) Always wear proper protective equipment. Safety glasses and gloves are recommended. Other tools may be substituted based on availability or personal preference from the list provided below.


Tools Recommended:
  • 3/8" Socket Size
    • 3/8" Socket Wrench
    • 10mm Socket
    • 12mm Socket
    • 14mm Socket
    • Various Extensions
    • Flex Joint Adapter
  • 1/2" Socket Size
    • 1/2" Socket Wrench
    • 1/2" Breaker Bar
    • 14mm Socket
    • 22mm Slotted Socket (Or Similar O2 Removal Tool)
    • Various Extensions
  • Phillips Head Screw Driver
  • Flat Head Screw Driver
  • Magnetic Extension Rod
  • Primary Car Jack
  • Secondary Small Car Jack
  • Jack Stands (2x)
  • Channel Lock Pliers
  • PB Blaster (Or Similar Penetrating Liquid)

Installation Instructions:

Step 1: Remove Air Intake
  • 1.1: Unplug the MAF sensor from the intake tube (Red Arrow) and unclip the sensor wiring from the air box (Blue circles.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.1_MAF_Sensor_Harness_Cli

  • 1.2: Remove rubber stripping by releasing clips holding it to the air duct and to the radiator cover (Red Arrows.) A flathead screwdriver can help pry up the tabs, but be careful not to tear the weather stripping.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.2_Intake_Weather_Strippin

  • 1.3: Lift the front peg of the air duct from the radiator cover.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.3_Air_Duct_From Radiator_Cover_Removal

  • 1.4: Remove 4x 10 mm head bolts (3 Red Circles and 1 Blue Circle) Using a 3/8 inch socket. A Roughly 9 inch extension will be required to access the lower 10 mm head bolt (Blue Circle.) Note – the lower bolt may be difficult to remove from the intake housing bushing but can stay in position while the entire intake is removed (Blue Circle.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.4_Intake_Bolts

  • 1.5: Compress the clamps on the jet valve hoses using channel lock pliers and disconnect the hoses from the black intake tube (Red Circles.) A flat head screwdriver can help push hoses off of their ports. Loosen the worm clamps with a Phillips head screwdriver (Blue Circles) and remove this section of the black intake tube.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.5.1_Intake_Hose_Removal
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.5.2_Intake_Hose_Removal

  • 1.6: Unclip the battery wiring from the air box (Red Circle.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.6_Battery_Wiring_Removal

  • 1.7: Remove air box from the vehicle. Note – there is a metal spire and rubber grommet on the underside of the air box that will provide some resistance when removing the air box (Red Circle.) A reasonable amount of vertical force is required to remove the air box from this connection point. It is also possible to remove the air box cover, air filter, and the rubber shroud prior to removing the air box itself in order to have better leverage. When removing the rubber shroud all 6x connection points must be disconnected (Red Arrows, 2x on the air box cover and 4x on the lower air box housing.) Be careful not to tear the rubber during this process. All components are shown below
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.7.1_Airbox_removal
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.7.2_Airbox_removal
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 1.7.3_Airbox_removal

Step 2: Remove Radiator Cover
  • 2.1: Unclip 10x push clips securing the radiator cover with a flathead screwdriver and remove. Take care not to drop any in the engine bay as they can be difficult to retrieve.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 2.1.1_Radiator_Cover_Removal

Step 3: Remove Top Pipe
  • 3.1: Remove 3x 10mm head bolts (Red Circles.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.1_Top_Pipe_Bolt_Removal

  • 3.2: Remove 2x 10mm head bolts (Red Circles.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.2_Top_Pipe_Bolt_Removal

  • 3.3: Remove 2x 10mm head bolts securing the wire harness to the top pipe (Red Arrows.) The view below is looking from the right hand side of the car. The lower bolt is difficult to see and access. The socket extension and flex joint used can be seen in the lower right hand side of the image. The socket is seated on the bolt head at this time.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.3_Top_Pipe_Harness_Bolts

  • 3.4: Remove 2x 12mm head bolts (Red Circles.) The rearmost bolt can easily be accessed with a 5" socket extension, but the forward most bolt is difficult to reach due to the plumbing and wires in the area. The images below show the socket orientation used for this bolt. It will likely be required to gently move hoses and wires in order to get the socket into place. Due to the difficulty in photographing the forward most bolt, the bare top pipe is also shown when removed from the engine in order to clarify where the 2x 10mm head harness bolts from the previous step (Blue Circles) and the 2x 12mm head bolts (Red Circles) are located. All photographs are taken from viewpoint at the right hand side of the vehicle.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.4.1_Top_Pipe_Bottom_Bolts
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.4.2_Top_Pipe_Bottom_Bolts
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.4.3_Top_Pipe_Bottom_Bolts

  • 3.5: Loosen the worm clamp (Red Circle) using a Phillips head screwdriver and disconnect the final section of the black intake pipe from the silver top pipe. Due to type of rivet used (Blue Circle) this section of the intake pipe is left on. It can be destructively removed and replaced, or this section of pipe can stay in place during this process.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 3.5_Top_Pipe_Final_Tube

  • 3.6: Remove the top pipe from the engine bay. Take care not to lose the gasket between the top pipe and the turbo.
Step 4: Remove Top Heat Shield and Upstream 02 Sensor
  • 4.1: Unplug the upper O2 sensor harness (Red Arrow) and the downstream O2 sensor harness (Yellow Arrow.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 4.1_O2_Sensor

  • 4.2: Remove the upstream O2 sensor using a 22 mm slotted deep socket or other dedicated O2 sensor tool. The downstream O2 sensor can be left in place and removed after the downpipe is out of the vehicle.
  • 4.3: Remove 3x 12 mm head bolts and remove the heat shield (2x Visible Bolts Shown in Solid Red Circles, Hidden Bolt Shown in Dashed Red Circle.) The forward most bolt is on the front vertical face of the heats shield and may be difficult to remove due to access. The second image shows the removed heat shield with all three bolt locations (Red Circles.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 4.3.1_Heat_Shield_Bolts
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 4.3.2_Heat_Shield_Bolts


Step 5: Spray Penetrating Liquid on Upper Downpipe Hardware
  • 5.1: Coat the 2x bolts and 2x nuts connecting the down pipe to the turbo with penetrating liquid. It is recommended to then let the liquid soak into the joint for several hours for best results. Re-apply penetrating liquid several times during this time period. Proceed with steps 6-8 while the liquid soaks into the joints.
Step 6: Raise Vehicle and Install Jack Stands
  • 6.1: Utilize the center jack location shown below or other means to raise the vehicle and install jack stands under the side life points. Due to the location of the central jacking location, a smaller secondary jack may be used to partially lift the vehicle using the tow hook shown in order to gain access for the primary jack. Install jack stands when enough clearance is obtained underneath the vehicle.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 6.1.0_Jack_Locations

Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 6.1.1_Jack_Locations
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 6.1.2_Jack_Locations
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 6.1.3_Jack_Locations


Step 7: Remove Belly Pan
  • 7.1: Remove 2x Phillips head machine screws at the front edge of the belly pan (Red Circles.) Remove 6x 90 degree plugs with a flat head screwdriver (Blue Circles.) Slide belly pan rearward to release it from 4x tabs (Orange circles.)
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 7.1.1_Belly_Pan
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 7.1.2_Belly_Pan
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 7.1.3_Belly_Pan


Step 8: Disconnect Lower End of Down Pipe
  • 8.1: Remove 3x nuts with a 14 mm socket (Red Circles) between the down pipe and the front pipe, 2x 14 mm head bolts securing the support brackets to the frame (Orange Circles) and 2x 14 mm head bolts holding the support brackets to the downpipe (Blue Circles.) The photos below show one view from the left side of the vehicle and the other from the right side. Note that the brackets holding the downpipe are stamped with an "L" or "R" for ease of re-assembly. The studs may come out of the downpipe during this process but are not needed to be kept. The RV6 Performance kit provides new studs. Penetrating liquid can be used to help with disassembly of these bolts as well. It may not be required to fully remove the brackets prior to removing the downpipe but doing so allows additional movement freedom.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 8.1.1_Lower_DownPipe_Bolts
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 8.1.2_Lower_DownPipe_Bolts


Step 9: Remove Down Pipe
  • 9.1: Allow a sufficient amount of time for the upper down pipe bolts to soak in penetrating liquid. It is recommended to allow 2-3 hours for this process to mitigate the chance of breaking the studs or bolts on the turbo.
  • 9.2: Remove the 2x 14 mm head bolts (1x Visible Bolt Shown in Solid Yellow Circle Solid and 1x Hidden Bolt Shown In Dashed Yellow Circle) and 2x nuts (Red Circles) with a 14 mm socket from the turbo. Various extensions may be required to gain access, but it is recommended to limit the use of flex joints to better control the torque through the socket wrench. Impact tools are not recommended as they have been known to shear these bolts and studs. For best results utilize consistent pressure on the socket wrench rather than jerking motions. Once the joint initially breaks loose apply additional penetrating liquid and work the joint back and forth slightly to fully break any remaining adhesion. A breaker bar can be helpful to provide additional leverage during this process. As a last resort a torch applied briefly to the bolts and nuts can help expand the metal and loosen the joints.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 9.2_Downpipe_Upper_Hardware

  • 9.3: Remove the downpipe from the engine bay. The process used for this guide was to slide the downpipe off of the studs at the turbo, which then allows for the downpipe to be pulled vertically upward to release the lower studs from the front pipe. The downpipe was removed through the top of the engine bay for this guide but can be removed from underneath the vehicle as well.
Step 10: Prepare New Down Pipe for Assembly
  • 10.1: Remove 4x 10 mm head bolts (Red Circles) from the factory heat shield and install onto the RV6 Performance downpipe. The heatshield will only assemble one way, do not force the shield to assemble upside down as compared to the factory instillation. Swapping the heat shield may not be required when assembling a down pipe with a ceramic coating, but will additionally help mitigate under hood temperatures.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 10.1_Downpipe_Heatshiels_Bolts

  • 10.2: Remove the downstream 02 sensor from the factory downpipe (Red Arrow) and assemble to the de-fouler on the RV6 Performance downpipe. The downpipe is provided with the de-fouler already assembled.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 10.2_Downstream_O2_Sensor


Step 11: Down Pipe Instillation
  • 11.1: Insert downpipe into the engine bay from the top and slide the lower downpipe studs into the front pipe. Ensure the gasket provided is assembled between the components during this process. Loosely assembly the 3x nuts between the downpipe and the front pipe.
  • 11.2: Slide the downpipe over the two studs protruding from the turbo. Ensure the factory gaskets are in place between these components. Loosely assemble the 2x 14 mm head bolts and 2x nuts.
  • 11.3: Reassemble the lower downpipe brackets to the frame using 2x 14 mm head bolts and the brackets to the downpipe using 2x 14 mm head bolts. Torque the brackets to the frame and then to the downpipe.
  • 11.4: Torque the 2x 14 mm head bolts and 2x nuts with a 14 mm socket between the downpipe and the turbo.
  • 11.4: Torque the 3x nuts with a 14 mm sockets between the downpipe and the front pipe.
  • 11.5: Check the orientation of the de-fouler and downstream O2 sensor to ensure clearance is seen between the sensor wires and the component shown (Red Arrow.) The de-fouler used in this guide needed to be rotated slightly to achieve more clearance.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 11.5_Downstream_O2_Clearance

  • 11.6: Assemble the upper heat shield with 3x 12 mm head bolts.
  • 11.7: Reassemble the upstream O2 sensor. Tighten O2 sensor to the down pipe prior to re-connecting the electrical harness.
Step 12: Final Assembly
  • 12.1: Perform steps 1-7 in reverse to re-assemble the belly pan, top pipe and air intake.
General Notes:
  • Torque specs have not been listed in this document as all hardware mentioned tends to be of small enough size to where "hand tight" should be sufficient. However utilization of a calibrated torque wrench provides clear evidence that sufficient bolt pre-loads have been achieved. Note the table below for some general guidelines on bolt torques. The below table assumes torques measured through a torque wrench have a +/- 10% accuracy. All hardware removed in this guide appeared to be grade 8.8.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide Table

  • Anti-seize compound may be applied to hardware to prevent hardware from becoming frozen together and aid with future disassembly. If chosen, take note that this lubricates the bolted joint and less torque is required to obtain the same bolt clamping force. The above dry torque values should be reduced by roughly 30% when utilizing anti-seize.
  • When re-torqueing the downpipe to the turbo (4x bolted connections) and the downpipe to the front pipe (3x bolted connections) apply the torque evenly across all bolts. To ensure proper joint clamping it is not recommended to fully torque one connection then move on to the next, but rather to gradually torque all connections in an alternating pattern until full torque is achieved at each connection.
  • Downpipe Comparison: The factory downpipe is shown next to the RV6 Performance downpipe below. Both downpipes were also weighed. The factory downpipe was seen to weigh 11 lbs even, while the RV6 Performance downpipe was seen to weigh 11 lbs and 10.5 oz.
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide Note_1
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide Note_2
Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide Note_3

EDIT: Sound clips of this downpipe can be found here:




A video summary of these instructions can be found here:



A .PDF copy of these instructions is also provided below.
@RV6

View attachment 107179
 

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tdsounds

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Perfect! Now I just gotta wait till mine arrives. Thanks a bunch for the work!
 

VTECnR

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Many thanks for doing this... I can see you put a large amount of time into making this for us. Steve
 
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Tim818

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I would give you a million thanks for this, I have one question, do we need to take off the radiator cover to access that hidden bolt on the top heat shield?
 


#04338

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You should be able to remove just the left radiator hold down. Unclip (2) from holding the harness then pull radiator towards you. Stick a long swival with 10mm down and loosen it that way.

Honda Civic 10th gen RV6 Performance Downpipe Instillation Guide 20180722_104319
 

dixie1

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Why remove the airbox ? I installed a downpipe a week ago without removing it...No problem at all... By the way , your downpipe looks fantastic :love:
 
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TheShadow

TheShadow

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I would give you a million thanks for this, I have one question, do we need to take off the radiator cover to access that hidden bolt on the top heat shield?
The radiator cover does not explicitly need to come off, I just felt it was easy enough to remove and saved me the possibility of chipping the plastic.

You should be able to remove just the left radiator hold down. Unclip (2) from holding the harness then pull radiator towards you. Stick a long swival with 10mm down and loosen it that way.

20180722_104319.jpg
This may be an easier way to access the bolt. I slipped a socket wrench between the radiator and the heat shield, but it was a challenge to keep the wrench where I wanted it. Both methods will work - I think the process would largely be based on the tools you have available

Why remove the airbox ? I installed a downpipe a week ago without removing it...No problem at all... By the way , your downpipe looks fantastic :love:
As I mentioned, not all components would need to be removed. I just wanted the most space I could have for arm room, and it does not take long to remove the airbox. Thank you for the compliment about the downpipe :) the quality from RV6 Performance coupled with the ceramic coating really is amazing - I can’t imagine how this part could be made better by anyone!
 

bRYANT619

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Good guide, I did mine without having to remove the air ducting though ;)
 

Chee_hu

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Well done. Thanks for the step-by-step instructions.
 


CincyTypeR

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Hey guys, I just uploaded sound clips of this downpipe to the guide. Check the edit near the end of the original post.
Can you clarify the sound clip? In the title it says "RV6 performance catted downpipe sound clips". However in the video it says "2017 FK8 Type R - Stock Exhaust with a mishimoto intake" (8 second mark).

When I initially watched it I thought it was showing sound clips of a full stock exhaust and then was going to show with the DP. But all of them of with the RV6 DP right?
 

Night Fury

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Hey guys, I just uploaded sound clips of this downpipe to the guide. Check the edit near the end of the original post.
It sounds really good Man - Thanks for sharing! it sounds close to what Honda originally promised at their CTR first TV commercial, the car sounded like a 5cyl. Very nicely raspy.

 
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TheShadow

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Can you clarify the sound clip? In the title it says "RV6 performance catted downpipe sound clips". However in the video it says "2017 FK8 Type R - Stock Exhaust with a mishimoto intake" (8 second mark).

When I initially watched it I thought it was showing sound clips of a full stock exhaust and then was going to show with the DP. But all of them of with the RV6 DP right?
Sorry it wasn’t clear - yes everything in the video is with the RV6 downpipe installed, I wanted to clarify that the remainder of the exhaust was stock. And I only mentioned the intake since some of the “whooshing” sounds in the cab are due to that, but the downpipe seemed to increase them slightly.
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