VSC 2004-2021 STI EJ Motor Engine Mounts Installation Guide
- June 5, 2024
- VSC
Table of Contents
VSC 2004-2021 STI EJ Motor Engine Mounts
BEFORE YOU START
Suggested Tools
○ Factory Service Manual
○ 3/8” Drive Ratchet Handle
○ 3“and 6” Extensions
○ 17mm Socket
○ 14mm Socket
○ 12mm Socket
○ 12mm Wrench
○ 14mm Wrench
○ 3/8” Torque Wrench
○ Pliers
○ Flat Head Screwdriver
○ Pick or Pry Bar
○ Floor Jack or Lift
○ Engine Hoist or Transmission Jack
○ Threaded Jack Stand
(if using lift)
○ Jack Stands
(if working on the ground)
What’s Included
● 2x Engine Mount
● 2x FA Motor Adapter Block
CAUTION: NOTES BEFORE STARTING
This document uses a 2020 STI for the installation process.
Your experience may differ slightly depending on year and model.
Make sure you have all necessary tools before beginning installation. We recommend taking your vehicle to an appropriate shop for the installation of this part if anything in this process is outside of your experience.
Take care on vehicles with aftermarket headers. To avoid damage, the Urethane bushings in these mounts should be shielded from excessive heat generated from aftermarket headers.
Please reference your Factory Service Manual for specific part removal
instructions on your specific vehicle.
Factory Service Manuals can be purchased at:
https://techinfo.subaru.com/
SAFETY CHECK
Always make sure the vehicle is adequately supported on ramps, jack stands, or a lift.
Warning: Never work under a vehicle supported only by a floor jack!
PART 01
Preparing Engine to Lift
- Remove air intake inlet
- Disconnect air intake (this step may vary with aftermarket air intakes)
- Remove top mounted intercooler (this step may vary with aftermarket intercoolers)
- Remove pitch stop mount
- Lift car off the ground and secure appropriately
- Remove splash guard
- Remove ( 1 ) LH 14mm Engine Mount Nut and ( 1 ) RH 14mm Engine Mount Nut from crossmember
- Disconnect downpipe from the catback exhaust
- Removal of front mounted sway bar may be necessary depending on the model
- The engine is now free to lift
PART 02
Lifting the Engine
- Lift engine up by pushing up on the bottom of the transmission case
- Make sure to place a piece of wood on the jack to protect the transmission
- Lift the engine approximately 3″
- Use of an engine crane will be required if working on jack stands
- Support engine with threaded jack stand or place a piece of wood between the engine case and the crossmember this step is for your safety
PART 03
Engine Mount Removal and Installation
-
Find the engine mounts and remove the (2) 14mm bolts securing each mount to the block
– remove factory mounts -
Take note of the positioning of each mount
-
Match the VSC Performance Engine Mount to the corresponding side
– this will be noted on the bottom surface of the mount -
Position the VSC Performance Engine Mount onto the block and ensure that mounting points sit flush against the block (PIC)
-
Carefully thread the bolts back into the block be careful not to cross-thread or over tighten these bolts this may cause substantial damage to your block
-
Torque bolts to 35 ft/lbs.
-
Repeat process for the second mount
-
Remove wooden support brace between engine and crossmember
-
Slowly lower engine watching that the studs on the engine mounts find the slots in the crossmember
– Some manipulation of the stud end of the engine mount may be necessary to ensure proper installation
– Stud can be pivoted with some force, but do not hit or pry threaded stud, this may cause damage to the threads preventing proper installation -
Once studs align to slots in the crossmember finish lowering the engine
-
Secure Engine Mounts with OEM flanged 14mm nuts and torque to 45 ft/lbs.
PART 04
Reassembly
- Attach downpipe to catback and torque to 25 ft/lbs
- Reinstall lower splash guard
- Lower vehicle to access engine bay
- Reinstall pitch stop mount secure rear bolt to 43 ft/lbs. and front bolt & nut to 37 ft/lbs.
- Reinstall intercooler
- Reinstall air intake system
PART 05
Finished
- Start and run the engine and observe for anything unusual take the car out for a test drive and you’ll notice an increase in NVH (noise, vibration, harshness), which is normal
- For bigger builds, check the condition of the engine mounts during regular services to ensure bushings have not been damaged from excessive heat. Some vehicles with aftermarket headers may require a heat shield to protect the bushings.
If you have questions or need help with your install or parts questions,
please reach out to us:
Email:[email protected] | Phone:
802.655.3533
WARNING AND SAFETY RULES
Prior to the installation and/or use of any of products contained herein, whether purchased from or provided by Lance Smith Inc., d/b/a Vermont SportsCar (“VSC”), please read and understand both the installation instructions and these Warning and Safety Rules.
Failure to read, and strictly adhere to both the installation instructions and this Warning and Safety Rules may result in damage to personal property, serious personal injury, and/or death.
Keep all products out of the reach of children, and if children are around the products, always have an adult present.
Follow all instructions regarding the installation and use of all products.
Do not disassemble, modify, or attempt to repair any products for any reason. If damaged or in need of service, please contact VSC at the phone number or email address below.
Do not use products in any manner which has not been approved by VSC, or in connection with any third-party products, unless each has been approved by VSC prior to such use.
Do not install or use products on vehicles which have not been approved by VSC, as stated at www.vtcar.com (the “Website”).
Prior to installation, always store products in a dry and clean location.
Do not strike, hit, crush, shock, drop, pierce or otherwise physically abuse products. Make sure products are located in a place in which they will not be tripped over, damaged, cut or scratched. Do not install or use any product if it appears to be damaged or defective, instead call or email VSC at the phone number or email address below.
Immediately discontinue use of the products in the event they become damaged, deformed, destroyed, or altered in any way due to force or contact.
In the event you become injured during installation or use of products seek immediate medical attention.
If you are for any reason unable or unwilling to follow these instructions, or to comply with the terms above as applicable, please contact VSC at (802)891-6815 or at[email protected]
Your installation or use of the products will constitute your acknowledgement that you have read the above. Keep this Warning and Safety Rules for your records so that you may return to them as needed.
The Undisputed Destination for Fast.
vtcar.com