{"product_id":"perrin-positive-steering-response-system-06-07-subaru-wrx-04-07-sti-psp-sus-403","title":"Perrin Positive Steering Response System | 06-07 Subaru Impreza WRX \/ 04-07 Impreza STI (PSP-SUS-403)","description":"\u003cp data-start=\"0\" data-end=\"72\"\u003ePerrin 06-07 Subaru Impreza WRX \/ 04-07 Impreza STI Positive Steering Response System (P.S.R.S)\u003c\/p\u003e\n\u003cp data-start=\"74\" data-end=\"284\"\u003eP.S.R.S stands for Positive Steering Response System, a product that replaces the rear bushings on the front control arms. Factory bushings are designed for comfort, but performance-minded drivers often dislike the deflection they create. Installing these upgraded bushings significantly improves cornering and suspension performance.\u003c\/p\u003e\n\u003cp data-start=\"286\" data-end=\"457\"\u003eIt is known that factory bushings can deflect by as much as 13mm during braking and acceleration, causing unwanted wheel movement and alignment changes, which lead to steering instability and changes in tire contact patches.\u003c\/p\u003e\n\u003cp data-start=\"459\" data-end=\"614\"\u003eAfter installing the PERRIN PSRS, alignment changes during braking are greatly reduced, improving front tire traction.\u003c\/p\u003e\n\u003cp data-start=\"616\" data-end=\"778\"\u003eThe PSRS bushings are intentionally offset from the center. This adds approximately 0.5 degrees of caster to the front, resulting in faster corner turn-in.\u003c\/p\u003e\n\u003cp data-start=\"780\" data-end=\"954\"\u003eFurthermore, it slightly reduces the \"anti-lift\" geometry built into the factory suspension, allowing the driver to control front-to-rear weight transfer more precisely.\u003c\/p\u003e\n\u003cp data-start=\"956\" data-end=\"959\"\u003eFeatures:\u003c\/p\u003e\n\u003cul data-start=\"960\" data-end=\"1153\"\u003e\n\n\u003cli data-start=\"996\" data-end=\"1021\"\u003eImproved driving stability during cornering and straight-line driving\u003c\/li\u003e\n\n\u003cli data-start=\"1022\" data-end=\"1051\"\u003eAdds approximately 0.5 degrees of caster to the front suspension\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"1089\" data-end=\"1116\"\u003eHigh-quality 95a durometer polyurethane bushings\u003c\/li\u003e\n\n\u003cli data-start=\"1117\" data-end=\"1153\"\u003eZerk grease fittings allow for external lubrication without disassembling the bushings\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"1155\" data-end=\"1160\"\u003eApplications:\u003c\/p\u003e\n\u003cul data-start=\"1161\" data-end=\"1206\"\u003e\n\n\u003cli data-start=\"1161\" data-end=\"1183\"\u003e2006 - 2007 Subaru Impreza WRX\u003c\/li\u003e\n\n\u003cli data-start=\"1184\" data-end=\"1206\"\u003e2004 - 2007 Subaru Impreza STI\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"1274\" data-end=\"1282\"\u003ePackage Contents:\u003c\/p\u003e\n\u003cul data-start=\"1283\" data-end=\"1366\"\u003e\n\n\u003cli data-start=\"1283\" data-end=\"1306\"\u003e1 Set - PERRIN PSRS bodies\u003c\/li\u003e\n\n\u003cli data-start=\"1307\" data-end=\"1330\"\u003e1 - Silicone grease\u003c\/li\u003e\n\n\u003cli data-start=\"1331\" data-end=\"1350\"\u003eInstallation hardware\u003c\/li\u003e\n\n\u003cli data-start=\"1351\" data-end=\"1358\"\u003eInstructions\u003c\/li\u003e\n\n\u003cli data-start=\"1359\" data-end=\"1366\"\u003eSticker\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"1368\" data-end=\"1429\" data-is-last-node=\"\"\u003eWarranty: PERRIN Performance standard limited warranty (initial defects, shipping damage)\u003c\/p\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":41471927418935,"sku":"PERPSP-SUS-403","price":3968000.0,"currency_code":"IDR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7502\/9815\/files\/perrin-performance-per-psp-sus-403-13447340589126.jpg?v=1739139635","url":"https:\/\/fivesquareusa.com\/en-id\/products\/perrin-positive-steering-response-system-06-07-subaru-wrx-04-07-sti-psp-sus-403","provider":"Shaft Shop","version":"1.0","type":"link"}