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Civic Si Rear motor mount
Your Civic Si
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Less engine movement
Easy$35–$1901 hr
Why do it
Reduces engine movement for crisper shifts and less wheel hop. A cheap insert is a good first step; full replacement mounts are stiffer and add more vibration.
Tools you'll need
- Jack stands
- Socket set
- Torque wrench
Parts to buy
- Perrin rear motor mount insert The budget option. Fits into the stock mount.Fits 2017–2020
- 27WON rear motor mount Full replacement mount for 2017–2020 Si.Fits 2017–2020
- Hasport rear engine mount (FCRR) Billet mount. Manual transmission only.Fits 2017–2020
Doesn't fit your car (0)
Always double-check fitment for your exact year, trim and transmission before buying. Prices change. ModBuddy doesn't earn money from these links.
Steps
- Raise the front on jack stands.
- Unbolt the stock rear mount.
- Install the new mount and torque to spec.
Safety first
- Park on flat, solid ground, set the parking brake and chock the wheels.
- Use jack stands rated for your car. Never get under a car held up only by a jack.
- Let the engine and exhaust cool completely before touching them.
- Disconnect the negative battery terminal before unplugging sensors or electrical parts.
- Wear safety glasses, and gloves around sharp heat shields and hot fluids.
- Tighten bolts to the torque spec in your factory service manual.
- If a step doesn't match your car or you're unsure, stop and ask a shop.
These are overview steps written to help you plan the job. Always follow the instructions that come with your part and the procedures and torque specs in your factory service manual. Horsepower is an estimate; results vary.