Reduce drivetrain shudder under hard acceleration by installing a PERRIN Pitch Stop mount. The factory pitch stop mount is designed to control the pitching of the engine and transmission under light to normal acceleration. Subaru's with power and drivetrain upgrades will need PERRIN's more aggressive option.
Under hard acceleration, the drivetrain is being twisted front to back from front axle torque twist. To control this front to back twisting, Subaru created a pitch stop mount. The factory pitch stop is made of plastic with soft rubber bushings, allowing for a significant amount of movement under hard driving conditions, creating drivetrain slop & shudder.
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It's a great product, sturdy as heck, solid. Does what it is supposed to. Engine is way more solid especially paired with the brace
I will say that this piece is great for stiffening up the drivetrain and preventing unncessary movement. Cabin noise is slightly increased as well. I will also say that if you are deciding to do this, do yourself a favor and buy the pitch stop brace as well. Many people have ripped the pitch stop right off of the firewall which is an expensive repair. The pitch stop brace prevents this by adding more points of contact to the firewall.
I have owned a couple Subarus but never did this mount before But I chose to do it on this car because for starters I did a FMIC kit And wanted some that look nice in that big open hole but I can honestly feel the difference from this in the car feels so much better when I accelerate I highly recommend this item to anybody
Fit perfectly (stock top mount), install was simple, and shifting feels a little more solid!
You can definitely feel the difference when shifting