FC1-6-10X-10 Front-Pipe Back Exhaust

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

If you are looking for the installation instructions for the 27WON Sport Hatchback Exhaust please follow this link: https://www.performanceinstalls.com/Guid...

Hello and welcome to the 27WON FC1 Exhaust install guide. Through out this guide we have included photos of both our Dual Slant Exhaust and our Dual Round Tip Exhaust to aid in your install. We have done this for your convenience but just so you are aware the install will be the same no matter which exhaust you have purchased.

The following instructions are shown with no bubble wrap or cardboard for clarity of the installation process.

We recommend leaving as much protective bubble wrap/cardboard on the exhaust as possible during install to protect against scratches and dings during the process.

Cut holes in the bubble wrap to expose on the flanges, hanger rods, and fastening locations

The 27WON packaging is not only designed to get your performance parts to your doorstep safely, but to also provide you with an awesome garage banner and/or comfy cardboard mat to lay on under your car for installation

You can cut out the banner as shown with the orange square

Or you can use the entire unfolded box as a mat to lay under your vehicle

Remove the staples from the box as they don't feel great on your backside...

Locate the engine under tray to gain access to the connection between the front-pipe and down stream exhaust

Use 10mm socket & ratchet to remove the bolts

Orange arrows identify push-clips in Step 5

Use large flat head screw driver to remove push-clips on each side of undertray

Locate the connection between the front-pipe and down stream exhaust

Verify that the exhaust is not to hot to touch, if still hot use a fan to cool the exhaust piping before proceeding

Use 14mm socket & ratchet to remove 3 OE nuts

This step and the next are meant to show you how to remove rubber hangers - Parts are not being removed from the vehicle at this time

Exhaust hangers can be difficult to remove without lubricant

Apply small amount of silicone spray lubricant to end of hanger rod

Use tongue & groove pliers to press the rod out of the rubber hanger

Hook the lower jaw to the edge of the rubber hanger. Hook the end of the upper jaw on the end of the rod to push the rod out of the hanger

Support the exhaust mid-section with a jack stand, bungy, or second set of hands before the next step

Support Mid-Section forward of the resonator as shown

Support Rear Muffler Section in two locations as shown

Locate the rubber hanger in the exhaust mid section

Use the tongue & groove pliers to pull the rubber hanger off the chassis rod in the direction of the red arrows

The rubber hanger will come off with the OE exhaust

Forward single rod rubber hangers

Middle dual rod rubber hangers

Rearward single rod rubber hangers

Pull the single rod hanger completely off the hanger rod and pivot out of the way as shown

Complete for both passenger and drivers sides

Pull the rubber hanger off the chassis hanger rod as shown

Completely remove the rubber hanger as shown so it is not being supported by the chassis hanger rod

These rubber hangers are not used on the 27WON Exhaust

Pull the rubber hangers off the chassis hanger rods and rotate downward; the rubber hangers will stay on the exhaust

Lower the exhaust to the ground and remove from under vehicle

Remove any debris/residue remaining on the OE front pipe

The surface should be clean and smooth for good gasket sealing; the result should look as shown

An assortment of tools can be used to remove the old gasket material. For example: scraper, sand paper and scotch bright pad, sand paper wheel...etc then cleaned with WD-40 and break clean

Do NOT remove the OE studs found in the front-pipe; these are used for installation

Remove the rubber hanger from the OE exhaust

Use of silicone spray may be needed

Locate the hanger rod on the 27WON Forward Resonated Mid-Pipe

Remove the bubble wrap and foam wrap from the hanger rod, but maintain bubble wrap protection on remaining exhaust

Install the rubber hanger onto the 27WON Forward Mid-Pipe as shown

Use of silicone spray may be needed

Locate the rearward mid-section exhaust pipe

This process is performed off the vehicle for best results

Locate QTY=3 sets of 35mm length M10 bolts

Locate QTY=1 tri-bolt gasket

The location of the flat washers, flanges, and split lock washer are critical for proper fastening and vibration resistance.

17mm M10 Nut

M10 Split Lock Washer

M10 Flat Washers

Exhaust Pipe Flange and Tri-bolt Gasket Location - Between the two flat washers

17mm M10 Bolt Head

Expose the flanges through the bubble wrap, but maintain bubble wrap protection on remaining exhaust

Position the forward and rearward mid-section inline with the flanges circled in red next to each other.

Install the provided tri-bolt gasket

The tri-bolt gasket can be installed in any orientation

Using the 35mm length M10 bolts, insert the bolts through the forward mid-section pipe

See Step 18 for hardware setup

Install the remaining washers and nuts. Get the bolts snug, but leave loose enough for each pipe to move independently

Remove the rubber hanger from the OE Muffler Section

Use of silicone spray may be needed

Locate the rearward hanger rod on the 27WON Muffler Section

Remove the bubble wrap and foam wrap from the hanger rod, but maintain bubble wrap protection on remaining exhaust

Install the rubber hangers onto the 27WON Muffler Section as shown

Use of silicone spray may be needed

An extra set of hands may be useful for this step. Also the use of silicone spray on the hangers may be helpful with installation

Insert both forward hangers as shown

Verify the bead of the hanger is through the rubber hanger as shown

Then raise the rear end of the muffler section up and insert both rearward hangers

Verify the bead of the hanger is through the rubber hanger as shown

Silicone spray may help installation on the chassis hanger rod

Install the assembled mid-section pipes onto the vehicle. Mount the rubber hanger on the chassis hanger rod as shown

Verify the bead of the hanger is through the rubber hanger as shown

Locate QTY=3 provided step nuts

If you have 27WON front pipe then locate QTY=3 step washers that came with it for connection to 27WON exhaust

Locate QTY=2 provided tri-bolt gaskets

Locate QTY=3 provided 35mm length M10 bolts

If you have 27WON front pipe installed then skip to the next step

Install the provided tri-bolt gasket onto the OE front-pipe

Align the studs through the flange then hand tighten the step nuts

Use a 14mm socket & torque wrench to torque each to 30-40 ft-lbs

If you have the OE front pipe installed then skip to the next step

Install the provided tri-bolt gasket

Install the provided step washers and nuts as shown

It is important that the provided step washers are used with the 27WON Front-Pipe Back Exhaust to properly align the flanges

When using the step washer, DO NOT use the flat washer and split lock washer

Use a 17mm socket & torque wrench to torque to 30-40 ft-lbs

Install the provided tri-bolt gasket between the muffler section and the rear mid-pipe section as shown

Install the 35mm length M10 bolts

See Step 18 for hardware setup

Use a 17mm socket & torque wrench to torque to 30-40 ft-lbs

Use a 17mm socket & torque wrench to torque the middle flange bolts to 30-40 ft-lbs

Please note that the Dual Round Tip Exhaust will have the same process.

Remove the protective bubble wrap and cardboard from the 27WON exhaust system as shown

Please note that the Dual Round Tip Exhaust will have the same process.

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

Re-install the push clips at each side of the undertray

Stand back from the car and verify that the tips are centered and have 1/4-1/3 inch clearance from the bumper

If the tips are not centered try gently shaking the exhaust to settle the rubber hangers

If the tips are sitting high, there may be a rubber hanger that is upside-down. Verify that all hangers are oriented correctly

Start the vehicle to check for leaks or rattles. If none, then take a spin around the block for further verification. If you do find a leak or rattle, please inspect the exhaust further

A leak could be caused by a loose flange bolt, improperly used gasket, or if debris is stuck between the gasket and flange

A rattle could be caused by misaligned pipe or a rubber hanger being orientated incorrectly

If you have exhausted all investigation then give us a call and we would be happy to help and resolve the issue with you

Exhaust may smoke for the first 30 minutes or so of use. This is normal

Exhaust sound will settle a bit during the first 100 miles of use. This is normal.

Your Honda has a cold start system which causes louder exhaust for around 15 seconds when you start your car cold

This completes the installation of your 27WON Performance Exhaust

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

Please Leave a review here: https://store.27won.com/2017-civic-si-ca...

Share your experience using #27WON on Instagram and Facebook