{"product_id":"cobb-subaru-rear-differential-subframe-mount-bushing-insert-2008-2021-wrx-2008-2021-sti","title":"COBB Rear Diff Subframe Mount Bush Insert | Subaru WRX\/STI (08-21) (CB-4297K)","description":"\u003ch1\u003eCOBB Rear Differential Subframe Mount Bushing Insert\u003c\/h1\u003e\n\n\u003ch2\u003eFitment: 2008-2021 Subaru WRX \/ 2008-2021 Subaru WRX STI\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e CB-4297K\u003c\/p\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\n\u003cp\u003eThe COBB Rear Differential Subframe Mount Bushing Insert is a precision-engineered upgrade designed specifically for Subaru WRX and WRX STI models from 2008 to 2021. This high-quality polyurethane insert replaces the factory rubber bushings to provide a firmer connection between the rear differential and subframe. It is ideal for enthusiasts who want to reduce torque twist and improve power transfer to the rear wheels, resulting in enhanced traction and more confident handling.\u003c\/p\u003e\n\n\u003cp\u003eBy minimizing unwanted movement in the rear differential, this insert helps maintain consistent drivetrain alignment under load, supporting better vehicle control without introducing additional noise or vibration. The COBB bushing insert is a practical upgrade for drivers seeking improved rear-end stability and responsiveness during spirited driving or track use.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cp\u003eDesigned to deliver durable and effective performance improvements, the COBB Rear Differential Subframe Mount Bushing Insert offers the following key features:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eConstructed from proprietary 94a durometer polyurethane for optimal balance of firmness and noise reduction\u003c\/li\u003e\n  \u003cli\u003eReduces rear differential torque twist to enhance power delivery and traction\u003c\/li\u003e\n  \u003cli\u003eImproves rear-end stability and handling precision under acceleration and cornering\u003c\/li\u003e\n  \u003cli\u003eMaintains quiet operation with minimal added vibration compared to factory bushings\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for factory subframe mount bushings for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eEngineered specifically for 2008-2021 Subaru WRX and WRX STI models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\n\n\u003cp\u003eThe insert is crafted from a proprietary polyurethane compound with a 94a durometer rating, chosen to provide a firm yet compliant connection that resists deformation under load. This material selection ensures long-lasting durability while preserving ride quality by dampening harshness typically associated with stiffer bushings. The precise fitment design allows the insert to securely lock the rear differential to the subframe, reducing unwanted movement without compromising NVH (noise, vibration, and harshness) characteristics.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\n\n\u003cp\u003eThis bushing insert is designed as a direct-fit replacement for the factory rear differential subframe mount bushings on Subaru WRX and WRX STI models from 2008 through 2021. Installation requires removal of the rear differential subframe mount bushings, and the insert fits seamlessly into the existing mounting points. Fitment should be verified against your vehicle’s specific model and year to ensure compatibility.\u003c\/p\u003e","brand":"COBB","offers":[{"title":"Default Title","offer_id":51602161107231,"sku":"CB-4297K","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/cobb-subaru-rear-differential-subframe-mount-bushing-insert-2008-2021-wrx-2008-2021-sti-cb-4297k-818037.jpg?v=1770429532","url":"https:\/\/shop.wheelflip.com\/products\/cobb-subaru-rear-differential-subframe-mount-bushing-insert-2008-2021-wrx-2008-2021-sti","provider":"WheelFlip","version":"1.0","type":"link"}