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Perrin Rear Motor Mount (RMM) Insert | 16-21 Civic Manual

Perrin Rear Motor Mount (RMM) Insert | 16-21 Civic Manual

Regular price $33.15 USD
Regular price $39.00 USD Sale price $33.15 USD
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  • 2016 - 2021 Honda Civic Manual
  • 2017 - 2020 Honda Civic Si
  • Does NOT fit Civic Type R. Type R Insert HERE


Introducing the Perrin Rear Motor Mount Insert (RMM) for all 2016+ Civic 1.5T 6MT variants (Hatch Sport, Si Coupe, Si Sedan). This will NOT fit CVT Transmission models that come with the plastic factory rear motor mount.

The Perrin RMM Insert controls the movement of the drive-train both on and off throttle giving you a more positive feel, and less wheel hop when launching the car from a stop.


After testing various setups personally, Unity Performance will offer both the Whiteline RMM Insert, and Perrin RMM Insert. Here's why:

- Whiteline is 1x 94a polyurethane bushing that fits all Civic trims. It's a great OEM+ upgrade for the enthusiast looking for less slop in the shifter, and less engine movement. Gains are noticeable, but you really don't feel any added vibration except for lightly in Reverse. 

- Perrin is 2x 70a polyurethane bushings that are softer than the 90a Whiteline, however having two of them makes it a more rigid setup, becoming an OEM++ upgrade. The benefit is less slop, but there is additional NVH. However, it is still friendly for daily-use, and to haul passengers around but you will know there is a a noticeable shake in 1st when setting off, and in Reverse. While driving there is slightly noticeable added NVH, but not intrusive.


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Customer Reviews

Based on 1 review
Much needed upgrade

A great way to stiffen up the RMM on your 10th Gen Civic. The Perrin RMM Bushings were super easy to install and you can feel the difference over just having the OEM RMM. You do get some slight vibration during idle but not need as much as some RMM with solid bushings. Under acceleration and deceleration there's a lot less engine movement. Makes a big difference for the great price.