{"product_id":"spl-spl-parts-toyota-a90-z4-rear-upper-arms","title":"SPL Parts Toyota A90\/Z4 Rear Upper Arms","description":"\u003ch1\u003eSPL Parts Toyota A90\/Z4 Rear Upper Arms\u003c\/h1\u003e\n\n\u003cp\u003e\nRubber should be saved for the tires. The factory rear upper arms on the Toyota GR Supra A90 and BMW Z4 G29 use soft rubber bushings that flex under load, which lets alignment and toe change right when you are asking the car to work the hardest. SPL Parts replaces those links with fully adjustable, spherical bearing components that keep the suspension honest and repeatable on both street and track.\n\u003c\/p\u003e\n\n\u003ch2\u003eMotorsport grade construction\u003c\/h2\u003e\n\u003cp\u003e\nGun drilled 2024 aluminum links, SPL’s 6061-T6 rotating clamps and Teflon lined FK spherical bearings keep weight down while delivering precise, low friction movement. Stainless or titanium hardware is used throughout for strength and corrosion resistance, and every kit is designed, machined and assembled in the USA.\n\u003c\/p\u003e\n\n\u003ch2\u003eMore camber range, less tire wear\u003c\/h2\u003e\n\u003cp\u003e\nSPL rear upper arms greatly increase the available rear camber adjustment on lowered cars, allowing you to run the negative camber needed for grip without pushing the factory eccentric bolts past their limits. They also help reduce inner shoulder tire wear by letting you fine tune the static and dynamic camber curve.\n\u003c\/p\u003e\n\n\u003cp\u003e\nWe use SPL hardware across many of our own builds because it is easy to work with, holds settings and stands up to real track mileage. If you are dialing in the Toyota GR Supra A90 and BMW Z4 G29 for serious driving, these pieces are a key part of getting the alignment and feedback you want.\n\u003c\/p\u003e","brand":"SPL Parts","offers":[{"title":"Default Title","offer_id":47435878334616,"sku":"SPL-A90-RUA","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/2878\/0696\/files\/SPL-RUA-G29-L1-0-Rear-Upper-Arm__92591.jpg?v=1763685811","url":"https:\/\/racewerkz.com\/products\/spl-spl-parts-toyota-a90-z4-rear-upper-arms","provider":"RWE","version":"1.0","type":"link"}