{"product_id":"whiteline-roll-center-kit-rsx-ep3-civic","title":"Whiteline Roll Center Correction Kit for 02-04 RSX\/02-05 Civic Si","description":"\u003cul\u003e\n\u003cli\u003eReduces Body Roll and Outside Front Compression \u003c\/li\u003e\n\u003cli\u003eDoes Not Correct Bump Steer \u003c\/li\u003e\n\u003cli\u003ePress-In Install, Front Alignment Required \u003c\/li\u003e\n\u003cli\u003e3 Year \/ 60,000 km Whiteline Manufacturer Warranty \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e   \u003cli\u003e\u003ca href=\"#Included\"\u003eIncluded\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eWhiteline Front Roll Center Correction Kit (KCA520) - 02-04 RSX \u0026amp; 02-05 Civic\u003c\/h3\u003e\n\n\u003cp\u003eDrop a DC5 or an EP3 two inches on coilovers and something happens that nobody warns you about: your front roll center falls below the pavement. That's why a slammed K20 car can roll more than it did stock, even with much stiffer springs holding it up. This Whiteline kit is a pair of extended lower ball joints that put the control arm angle back where Honda designed it and get the front end working properly again.\u003c\/p\u003e\n\n\u003ch4\u003eWhy A Lowered Car Rolls More\u003c\/h4\u003e\n\n\u003cp\u003eWorth understanding, because it's counterintuitive and it explains why springs alone don't fix it.\u003c\/p\u003e\n\n\u003cp\u003eThe roll center is the point your chassis rotates around in a corner, and it's set by the angle of your lower control arms. At stock height those arms sit roughly level. Lower the car and the arms tip up at the outboard end, which pulls the roll center down with them, sometimes below ground level entirely.\u003c\/p\u003e\n\n\u003cp\u003eThe problem is leverage. The further your roll center sits from your center of gravity, the longer the lever the body has to roll around. So lowering the car geometrically increases roll even while the springs are fighting it. What you feel is more body roll than you expected, more compression on the outside front tire, and less grip, regardless of spring rate.\u003c\/p\u003e\n\n\u003cp\u003eWhiteline's kit swaps the factory ball joints for taller ones. The knuckle sits higher on the arm, the arm returns to a flatter angle, and the roll center comes back up where it belongs. On a lowered RSX Type-S the difference is a car that stays flatter, loads the outside front evenly, and turns in without the front tire folding over onto its shoulder.\u003c\/p\u003e\n\n\u003ch4\u003eThis Is For Lowered Cars\u003c\/h4\u003e\n\n\u003cp\u003eBe direct about this one. On a stock height RSX or Civic, the kit raises the roll center past where it should be and does nothing useful for you.\u003c\/p\u003e\n\n\u003cp\u003eThe sweet spot is a car dropped somewhere between an inch and a half and two and a half inches on coilovers or serious springs. That's where track and autocross drivers notice the biggest change, and it's where the geometry problem is real rather than theoretical.\u003c\/p\u003e\n\n\u003ch4\u003eCheck Your Control Arms Before Ordering\u003c\/h4\u003e\n\n\u003cp\u003eThis is the thing to get right, because the wrong kit physically won't press in.\u003c\/p\u003e\n\n\u003cp\u003eKCA520 is built for the factory steel lower control arms with a 12mm ball joint stud. That covers the 2002-2004 RSX and the 2002-2005 7th gen Civic as they left the factory.\u003c\/p\u003e\n\n\u003cp\u003eTwo situations where you need something different:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRunning JDM DC5 Type R aluminum arms?\u003c\/strong\u003e Those take Whiteline's KCA521 instead. It's a common swap, so worth checking what's actually on your car rather than assuming.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGot an 05-06 RSX?\u003c\/strong\u003e Whiteline doesn't list those years for this kit. Confirm your stud size and arm type before ordering rather than hoping it's the same.\u003c\/p\u003e\n\n\u003ch4\u003eRoll Center Only, Not Bump Steer\u003c\/h4\u003e\n\n\u003cp\u003eBeing clear about scope. This kit is two ball joints and it corrects roll center. That's it.\u003c\/p\u003e\n\n\u003cp\u003eBump steer on a lowered car is a separate problem living in the tie rods, and it's what causes the steering to get darty over bumps after a drop. Whiteline sells KCA517 extended tie rod ends for that, and plenty of people run both since lowering a car creates both problems at once.\u003c\/p\u003e\n\n\u003cp\u003eIf your steering has gone twitchy since the drop, ball joints alone won't fix it.\u003c\/p\u003e\n\n\u003ch4\u003ePlan The Install\u003c\/h4\u003e\n\n\u003cp\u003eThe ball joints press into the lower arms, so this is a press job rather than a driveway swap. If your factory joints already have play in them, that's ideal timing, since you were going to be doing this work anyway.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBook a front alignment for the same day.\u003c\/strong\u003e A taller ball joint changes both camber and toe, and driving on it unaligned means eating tires and a car that won't track straight.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2002-2004 Acura RSX Base and Type-S (K20A3, K20A2)\u003cbr\u003e2002-2005 Honda Civic, all trims including Si (EP3, EM2, ES)\u003c\/p\u003e\n\n\u003cp\u003eFor factory steel lower control arms with a 12mm ball joint stud.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Run This Kit\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the DC5 or EP3 owner who's lowered the car and wants the front geometry corrected rather than fighting what the drop did to it. Autocross, track days, or a fast street car where turn-in matters. It's the kind of modification that doesn't show up on a dyno but changes what the car does at the limit. Confirm your arms, get the press work done, book the alignment, and get your front end back.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2002-2004 Acura RSX Base and Type-S, 2002-2005 Honda Civic all trims. \u003cstrong\u003ePart number:\u003c\/strong\u003e KCA520. \u003cstrong\u003eIncludes:\u003c\/strong\u003e two extended lower ball joints. \u003cstrong\u003eRequires:\u003c\/strong\u003e factory steel lower control arms with 12mm ball joint stud. \u003cstrong\u003eCorrects:\u003c\/strong\u003e front roll center only, bump steer requires KCA517 tie rod ends. \u003cstrong\u003eFinish:\u003c\/strong\u003e anodized alloy housing. \u003cstrong\u003eRequired:\u003c\/strong\u003e front alignment after installation. Press required for installation. \u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 year \/ 60,000 km. \u003cstrong\u003eNot for:\u003c\/strong\u003e stock height cars, JDM DC5 Type R aluminum arms (use KCA521), or 2005-2006 RSX.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e2002-2004 Acura RSX Base\/Type S\u003cbr\u003e2002-2005 Honda Civic Si\u003cbr\u003e2001-2005 Honda Civic DX\/EX\/LX\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpec\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eKCA520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit contents\u003c\/td\u003e\n\u003ctd\u003e2 extended ball joints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBall joint stud\u003c\/td\u003e\n\u003ctd\u003e12mm, for factory steel lower arms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront, both sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBump steer\u003c\/td\u003e\n\u003ctd\u003eNot corrected by this kit; Whiteline recommends KCA517 tie rod ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eAnodized alloy housing, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFront alignment required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3 year \/ 60,000 km, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\n\n \n\u003cli id=\"Included\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"Whiteline","offers":[{"title":"Default Title","offer_id":46551926702114,"sku":"WYT-KCA520","price":228.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/50150474d64d2902df7cd1c25a0acc86L.jpg?v=1787694461","url":"https:\/\/www.hybrid-racing.com\/products\/whiteline-roll-center-kit-rsx-ep3-civic","provider":"Hybrid Racing","version":"1.0","type":"link"}