Perrin Transmission Mount / Transmission Bushing Combo
2013+ FR-S / BRZ / 86
Details
Get the best of both worlds right here. A Perrin Transmission mount and and Perrin Shifter Bushing.
These little bushings are tough. PERRIN Performance Shifter Bushings replace the stock soft rubber bushings with unforgiving polyurethane versions. Helps achieve a solid and stable shifter feel.
WHY DO I WANT STIFFER TRANSMISSION MOUNTS?
The PERRIN Transmission Mount Support reduces drivetrain movements under hard acceleration, deceleration and corning, which allows your engine to transmit more power to the wheels. This means better, more accurate launches for drag racing and auto cross type events where you do not want drivetrain slop.
HOW DOES IT WORK?
The factory "T" shaped interlocking support does not fit snugly into the transmission mount. The gaps around this "T" shaped piece allow the transmission to move roughly .500" in all directions. The PERRIN Tranny Mount Support is a larger version of the factory piece, eliminating the gaps and reducing transmission movements. The PERRIN Tranny Mount Support, will only allow .100" of maximum deflection keeping the back end of the tranny in place during extreme driving and giving the driver a positive shift feel.
CONSTRUCTION
PERRIN tranny mount support pieces are made from CNC'ed 6061-T6 aluminum which means nothing will wear out and no urethane which will eventually squeak.
ADDED VIBRATION
The PERRIN tranny mount support will stiffen your stock transmission mounts which will add some added NVH (noise, vibration, harshness.) For most people this is pleasing, feeling your engine solidly connected to the chassis, versus having that sloppy disconnected feel.
2 customer reviews
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Huge improvement over stock
By Shade October 22, 2020This kit by itself is a huge improvement. All of the slop is gone and every gear is satisfyingly notchy. There is a noticeable gear noise in 1-3 but I find that satisfying. I don't feel any added harshness or vibration.
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Must have! Pair with Whiteline or other transmission insert
By 86Styling October 10, 2018Great value combo. I bought this with along with the Whiteline transmission bushing. It was a pain in the butt to do this under a car on jacks with little arm, head or chest room. Best down on ramps, or a lift if available. It can be done on jacks but be prepared to be cramped. Remove front pipe for easiest and quickest time to install. It took me all day to do the install without doing that. Other than that, I am simply amazed with the results. Night and day comparison vs. stock. I love the new noise and vibration, but that I just me. Installing these and the whiteline bushing will add NVH (Noise Vibration and Harshness), but for some people this can be pleasing. I wrote similar positive review for the whiteline bushing because I bought these and that together. That's also what I recommend for the best results. Shifting is crisper, acceleration is more aggressive, and the cabin sound alone made this upgrade worth it. Excellent bang for buck!
