{"product_id":"hks-02-06-rsx-hi-power-cat-back-exhaust-variants","title":"HKS Hi-Power Catback Exhaust for 02-06 RSX Base\/Type S","description":"\u003cul\u003e\n\u003cli\u003eThree Applications Available \u003c\/li\u003e\n\u003cli\u003e60mm or 65mm Piping Diameters \u003c\/li\u003e\n\u003cli\u003eFitments for Base and Type S Trims \u003c\/li\u003e\n\u003cli\u003eDesigns for Naturally Aspirated and Turbo Setups \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=\"#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\u003eHKS Hi-Power Cat-Back Exhaust - 2002-2006 Acura RSX\u003c\/h3\u003e\n\n\u003cp\u003eThe Hi-Power is HKS's most recognizable exhaust and the DC5 is one of the platforms it belongs on. The design philosophy is simple: eliminate unnecessary bends and give exhaust the straightest path out. On a K20 that lives at the top of the rev range, freeing up the exhaust is where the gains are, and the Hi-Power tone is what people know these cars by.\u003c\/p\u003e\n\n\u003ch4\u003eThree Versions, Pick Carefully\u003c\/h4\u003e\n\n\u003cp\u003eThe variants split by trim and by intent, so match yours before ordering.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth scope=\"col\"\u003ePart Number\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003eFits\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003ePiping\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003eSilencer\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e32003-BH002\u003c\/td\u003e\n            \u003ctd\u003e2002-2006 RSX Base\u003c\/td\u003e\n            \u003ctd\u003e60mm\u003c\/td\u003e\n            \u003ctd\u003eIncluded\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e32003-BH003\u003c\/td\u003e\n            \u003ctd\u003e2002-2006 RSX Type-S\u003c\/td\u003e\n            \u003ctd\u003e60mm\u003c\/td\u003e\n            \u003ctd\u003eIncluded\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e32003-BH004\u003c\/td\u003e\n            \u003ctd\u003e2002-2006 RSX Type-S, turbo and race\u003c\/td\u003e\n            \u003ctd\u003e65mm\u003c\/td\u003e\n            \u003ctd\u003eNot included\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eBase and Type-S take different systems even though both run 60mm piping, so don't assume they're interchangeable.\u003c\/p\u003e\n\n\u003ch4\u003eThe Turbo Version Is Off-Road Use Only\u003c\/h4\u003e\n\n\u003cp\u003eRead this before you order BH004, because it's the most important thing on this page.\u003c\/p\u003e\n\n\u003cp\u003eThe 65mm turbo system is designated \u003cstrong\u003eoff-road use only\u003c\/strong\u003e. It's built for turbocharged and race applications where emissions compliance isn't part of the equation. If your RSX is a street car that needs to pass inspection, this isn't your exhaust regardless of how much power you're making.\u003c\/p\u003e\n\n\u003cp\u003eIt also comes without a silencer, since the whole point is maximum flow. That's the right call for a boosted car and the wrong call for a daily.\u003c\/p\u003e\n\n\u003cp\u003eIf you're turbocharged but the car still sees the street in an inspection state, the Type-S system at 60mm is the version to look at.\u003c\/p\u003e\n\n\u003ch4\u003e60mm Or 65mm?\u003c\/h4\u003e\n\n\u003cp\u003eThe size difference isn't arbitrary and bigger isn't automatically better.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e60mm\u003c\/strong\u003e is sized for a naturally aspirated K20. It flows considerably better than the restrictive factory system while keeping exhaust gas velocity where it needs to be. Velocity matters on an NA engine because it drives the scavenging that pulls spent gas out of the cylinder, and oversizing kills it. A 60mm system on a stock or bolt-on Type-S is the right answer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e65mm\u003c\/strong\u003e exists because a turbo changes the math entirely. Once you're forcing air in, exhaust volume climbs dramatically and the restriction moves. The larger diameter gives boost somewhere to go, which helps spool and top-end power. On an NA car it would cost you midrange for nothing.\u003c\/p\u003e\n\n\u003cp\u003eSo buy 65mm if you're boosted. Buy 60mm if you're not.\u003c\/p\u003e\n\n\u003ch4\u003eThe Silencer Is A Real Feature\u003c\/h4\u003e\n\n\u003cp\u003eBoth 60mm systems include a silencer, and it's worth understanding what that gives you.\u003c\/p\u003e\n\n\u003cp\u003eThe Hi-Power is not a quiet exhaust by design. Drop the silencer in and you take the edge off for a commute, an early morning, or anywhere you'd rather not announce yourself. Pull it out and you get the full Hi-Power note back.\u003c\/p\u003e\n\n\u003cp\u003eThat means one exhaust covers both situations rather than making you choose at purchase. On a car that's still a daily for a lot of people, that flexibility is genuinely useful.\u003c\/p\u003e\n\n\u003ch4\u003eStraight Path, Fewer Bends\u003c\/h4\u003e\n\n\u003cp\u003eThe core of the Hi-Power design, taken directly from HKS's endurance and GT racing work in Japan.\u003c\/p\u003e\n\n\u003cp\u003eEvery bend is a restriction. Gas changes direction, slows down, and turns turbulent, and turbulent flow moves through a pipe considerably worse than smooth flow. HKS uses a race-inspired offset muffler and piping layout that minimizes direction changes and keeps the path as direct as the chassis allows.\u003c\/p\u003e\n\n\u003cp\u003eOn a K20, and particularly a Type-S climbing through VTEC, that shows up where you actually notice it, at the top of the rev range.\u003c\/p\u003e\n\n\u003ch4\u003eCoated Stainless Construction\u003c\/h4\u003e\n\n\u003cp\u003eBuilt from coated stainless steel piping, which is what keeps these looking right and holding up underneath a car that's now twenty years old. Stainless resists rust far better than mild steel, so this isn't a system you'll be replacing because it rotted out.\u003c\/p\u003e\n\n\u003cp\u003eAll three versions use a 115mm outside diameter tip.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2002-2006 Acura RSX Base (32003-BH002)\u003cbr\u003e2002-2006 Acura RSX Type-S (32003-BH003)\u003cbr\u003e2002-2006 Acura RSX Type-S, turbo and race applications (32003-BH004, off-road use only)\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Run This Exhaust\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the RSX owner who wants a genuine HKS system rather than a generic cat-back, whether the car is stock, built naturally aspirated, or boosted. Match your trim, be honest about whether you need the turbo system or just want it, and pick accordingly. Bolt it on and go use the top half of the tach.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2002-2006 Acura RSX, see the variant table above. \u003cstrong\u003eType:\u003c\/strong\u003e cat-back exhaust system. \u003cstrong\u003ePiping:\u003c\/strong\u003e 60mm (Base and Type-S) or 65mm (turbo application). \u003cstrong\u003eTip:\u003c\/strong\u003e 115mm outside diameter. \u003cstrong\u003eMaterial:\u003c\/strong\u003e coated stainless steel. \u003cstrong\u003eSilencer:\u003c\/strong\u003e included on 60mm systems, not included on the turbo system. \u003cstrong\u003eImportant:\u003c\/strong\u003e the 65mm turbo system is for off-road use only.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e\u003cspan class=\"tag\"\u003e2002-2006 Acura RSX Bae\/Type S\u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\n\u003c\/li\u003e\n\n\n\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":"HKS","offers":[{"title":"02-06 RSX Base (60mm)","offer_id":46608230285346,"sku":"HKS-32003-BH002","price":1050.0,"currency_code":"USD","in_stock":false},{"title":"02-06 RSX Type S (60mm)","offer_id":46608230318114,"sku":"HKS-32003-BH003","price":980.0,"currency_code":"USD","in_stock":false},{"title":"02-06 RSX Type S (65mm)","offer_id":46608230350882,"sku":"HKS-32003-BH004","price":1180.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/56e7dc12cac2f6f8bc6907910be7d61e.jpg?v=1787846510","url":"https:\/\/www.hybrid-racing.com\/products\/hks-02-06-rsx-hi-power-cat-back-exhaust-variants","provider":"Hybrid Racing","version":"1.0","type":"link"}