Introduction
In this installation guide we have provided step by step instructions to setup, remove the OEM exhaust, and install the 27WON Performance Front Pipe.
Advisory:
- Working under the vehicle requires a safe and sturdy location for the vehicle to sit on jackstands.
- The exhaust piping will be hot after recent vehicle operation. Allow the vehicle to cool or use a fan to cool the exhaust piping before working on the vehicle.
Tools
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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
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If you will be installing the Front Pipe with the 27WON downpipe then use those instructions instead: L15-6-209-15 11th Gen Downpipe. Those instructions will refer back to these as needed
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You will proceed to remove the OEM Front-pipe from the vehicle in the coming steps
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The next steps will be performed underneath the vehicle. Please make sure vehicle is secured on a lift or jack stands
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Locate the Skidtray
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Use a flathead screwdriver or a prying tool to remove the fourteen (14) plastic push-clips circled in orange. Orange arrows identify the eight (8) additional push-clips described in the next step that are removed last
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Use a #2 Philips head screw driver to remove the two (2) Philips pan head screws shown in red circles
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Use a 10mm socket and ratchet to remove the two (2) short head shoulder bolts shown in dark blue circles
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Use a 10mm socket & ratchet to remove the four (4) tall head shoulder bolts shown in light blue circles
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We recommend using a prying tool like the one shown by the green square
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Use a large flat head screw driver or prying tool to remove the four (4) push-clips in each front wheel well
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Use a 14mm socket and ratchet to remove the three OE nuts
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It is possible that the stud will thread out of the downpipe flange. This is not an issue, the stud can be threaded back into the flange like a bolt
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Locate the connection between the front-pipe and down stream exhaust
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Verify that the exhaust is not to hot to touch, if still hot use a fan to cool the exhaust piping before proceeding
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Use 14mm socket & ratchet to remove three (3) OE nuts in red circles, as shown
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Locate the OEM front pipe hanger. Directly under this hanger will be two bolts mounting the hanger to the chassis
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Using a 12mm socket, remove the bolts
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Free the hanger from its mounting location as shown
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Remove the OE front-pipe from the vehicle through the access point directly under the engine
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Using a spray cleaner, lubricate the front pipe hanger and remove it from the OE front pipe using tongue & groove pliers
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Reinstall the hanger on the 27WON front pipe
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Locate the provided 2&1 MLS gasket for front-pipe installation
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Guide the 27WON front pipe into the car
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Guide the front pipe support studs back into their location
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Install the provided 2&1 MLS gasket on the downpipe flange
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Align the studs through the flange then hand tighten the nuts
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Use a 14mm socket & torque wrench to torque each to 30-40 ft-lbs
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Using a 12mm socket, reinstall the (2) bolts to secure the front pipe support to the chassis
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The location of the flat washers, flanges, and split lock washer are critical for proper fastening and vibration resistance.
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17mm M10 Nut
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M10 Split Lock Washer
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M10 Flat Washers
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Exhaust Pipe Flange Location - Between the two flat washers
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17mm M10 Bolt Head
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Locate the provided "tri-bolt" gasket for front-pipe installation
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Locate QTY=3 provided 35mm length assembled M10 bolts
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Locate QTY=3 provided step washers
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For your assistance in installing the 27WON Front-Pipe, we have laid out the installation with the 27WON Front-Pipe Back Exhaust and OE Front-Pipe Back Exhaust
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Step 18 Shows the installation with the 27WON Front-Pipe Back Exhaust
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Step 19 Shows the installation with the OE Front-Pipe Back Exhaust
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If you are connecting to the OE front-pipe back exhaust, skip to Step 19
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Install the provide tri-bolt metal gasket
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Using the 35mm length M10 bolts, insert the bolts through the front-pipe flange first
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Install the provided step washers and nuts as shown
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When using the step washer, DO NOT use the flat washer and split lock washer
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It is important that the provided step washers are used with the 27WON Front-Pipe Back Exhaust to properly align the flanges
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While hand tightening the nuts, verify that the step washers inserting into the flange correctly. Use a 17mm socket & torque wrench to torque the bolts to 30-40 ft-lbs
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If you have already connect your Front-Pipe to the 27WON Exhaust then you can skip this step
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Install the provided metal gasket
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Using the 35mm length M10 bolts, insert the bolts through the front-pipe flange first
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See Step 15 for hardware setup
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Install the remaining washers and nuts. Use a 17mm socket & torque wrench to torque the bolts to 30-40 ft-lbs
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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
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A leak could be caused by a loose flange bolt, improperly used gasket, or if debris is stuck between the gasket and flange
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A rattle could be caused by misaligned pipe or a rubber hanger being orientated incorrectly
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If you have exhausted all investigation then give us a call and we would be happy to help and resolve the issue with you
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Reinsert the (4) push pins into the mounting spots as shown
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Repeat this step on the other side
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Reinstall the fourteen (14) plastic push-clips circled in orange
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Using a Philips head screw driver, reinstall the two (2) Philips pan head screws shown in red circles
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Using a 10mm socket and ratchet, reinstall the two (2) short head shoulder bolts shown in dark blue circles
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Using a 10mm socket & ratchet reinstall the four (4) tall head shoulder bolts shown in light blue circles
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This completes the installation of your 27WON Performance Front-Pipe
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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
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