{"product_id":"hks-hi-power-409-ecr33-rb25det","title":"HKS Hi-Power 409 ECR33 RB25DET","description":"\u003cdiv\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e31006-AN014\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e (not listed in source; confirm with retailer)\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eHKS Hi-Power 409 Exhaust System – Nissan Skyline ECR33 RB25DET (1993-1998)\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe HKS Hi-Power 409 Exhaust System (part 31006-AN014) is a high-performance cat-back exhaust designed for the Nissan Skyline ECR33 equipped with the RB25DET engine. This system features a straight-through design with a large 120mm tip and optimized 95mm piping for maximum exhaust flow, delivering improved horsepower, torque, and a deep, aggressive exhaust note. Constructed from durable S409 stainless steel, the Hi-Power 409 is engineered for both street and track use, providing better throttle response and a more exhilarating sound while maintaining reliability. The system is a direct bolt-on replacement that requires no modifications, making it a popular choice among Skyline enthusiasts looking for a balance of performance, sound, and value.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Power 409 Design\u003c\/strong\u003e – Straight-through muffler for maximum flow and aggressive sound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Piping\u003c\/strong\u003e – Large diameter piping (up to 95mm) reduces backpressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS409 Stainless Steel\u003c\/strong\u003e – Durable and corrosion-resistant construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120mm Tip\u003c\/strong\u003e – Bold rear appearance with excellent flow characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On Installation\u003c\/strong\u003e – Direct replacement for the factory exhaust system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e31006-AN014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHKS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHi-Power 409 Cat-Back Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e1993-1998 Nissan Skyline ECR33 RB25DET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eS409 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTip Diameter\u003c\/td\u003e\n\u003ctd\u003e120mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter Pipe Diameter\u003c\/td\u003e\n\u003ctd\u003e95mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eHKS Limited Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhats Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eComplete Hi-Power 409 Cat-Back Exhaust System\u003c\/li\u003e\n\u003cli\u003eAll necessary gaskets, clamps, and hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Nissan Skyline ECR33 with RB25DET engine\u003c\/li\u003e\n\u003cli\u003eDelivers deeper, more aggressive exhaust note with improved performance\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBolt-on cat-back system – no welding required\u003c\/li\u003e\n\u003cli\u003eEstimated time: 2–4 hours\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended for proper alignment and torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1993-1998\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline ECR33\u003c\/td\u003e\n\u003ctd\u003eRB25DET Turbo\u003c\/td\u003e\n\u003ctd\u003eHi-Power 409 Cat-Back Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose HKS Hi-Power Exhaust Systems?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven performance from decades of racing and tuning experience\u003c\/li\u003e\n\u003cli\u003eOptimized straight-through design for maximum flow and power\u003c\/li\u003e\n\u003cli\u003eHigh-quality Japanese engineering with excellent fitment and sound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this exhaust system fit my 1995 Nissan Skyline ECR33 RB25DET? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is designed specifically for the 1993-1998 Nissan Skyline ECR33 with the RB25DET engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How loud is the Hi-Power 409 system? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It produces a deep, aggressive exhaust note that is noticeably louder than stock while remaining street-friendly in most regions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is professional installation recommended? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, proper alignment and secure mounting are important for optimal performance and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Ground UPS or FedEx (oversize may apply)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock – ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure HKS retail packaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":45113227804751,"sku":"HKS31006-AN014","price":700.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/HKS_Hi-Power_409_ECR33.png?v=1776719382","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-hi-power-409-ecr33-rb25det","provider":"Black Ops Auto Works","version":"1.0","type":"link"}