The PERRIN Shifter Detent Kit is an inexpensive upgrade that adds a crisp and solid feel to gear changes in your manual transmission WRX or STI.
Crisp Gear Shifts
The kit enhances gear shifting by providing a more defined feel for each gear position, including neutral. You get crisp, satisfying shifts—making manual-driving more enjoyable.
How It Works
It increases the pressure on the OEM shift rod detents, resulting in more precise gear changes and more defined gear engagement every time.
Explain Like I’m 5
Tiny parts that make shifting feel smoother and more precise—like a satisfying snap when you close a lid.
Installation
Immediate improvement after install. Under 1 hour install time, and long-term reliability.
Product Details
In The Box:
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(5) PERRIN Shifter Detent Bolts
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Installation hardware
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Warranty & Instructions
Compatibility:
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Manual transmissions only
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PSP‑INR‑042 variant for Legacy Spec B (includes extra components not needed for that transmission)
Supported Vehicles:
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2004–2021 STI
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.