{"product_id":"tomei-ball-bearing-bx-b-b-turbocharger-kit-arms-bx8265-ej-single-scroll-tb403a-sb01c","title":"Tomei Ball Bearing BX B\/B Turbocharger Kit Arms BX8265 EJ Single Scroll | TB403A-SB01C","description":"\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:970062f3-6303-451a-8276-f7378f64bd25-36\" data-testid=\"conversation-turn-52\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"f6bcc391-8499-483e-8dab-8d992d93a551\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"103\" data-end=\"529\"\u003e\u003cstrong\u003eProduct Fitment: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"103\" data-end=\"529\"\u003e2002-2007 Subaru WRX\u003c\/p\u003e\n\u003cp data-start=\"103\" data-end=\"529\"\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp data-start=\"103\" data-end=\"529\"\u003eThe \u003cstrong data-start=\"107\" data-end=\"158\"\u003eTomei ARMS BX8265 Ball-Bearing Turbocharger Kit\u003c\/strong\u003e is a high-performance turbo upgrade designed for \u003cstrong data-start=\"208\" data-end=\"254\"\u003eSubaru EJ20 and EJ25 single-scroll engines\u003c\/strong\u003e. Engineered to deliver fast spool and strong top-end power, this turbo uses advanced materials and precision manufacturing to provide reliable performance for both street and track builds targeting up to \u003cstrong data-start=\"459\" data-end=\"528\"\u003eapproximately 450 horsepower with proper supporting modifications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"531\" data-end=\"803\"\u003eAt the heart of the BX8265 is a \u003cstrong data-start=\"563\" data-end=\"612\"\u003eCNC-machined billet aluminum compressor wheel\u003c\/strong\u003e made from aerospace-grade A2618 material. The lightweight design and thinner blades improve airflow efficiency and help the turbo spool faster compared to traditional cast compressor wheels.\u003c\/p\u003e\n\u003cp data-start=\"805\" data-end=\"1070\"\u003eFor precise boost control, the turbo features a \u003cstrong data-start=\"853\" data-end=\"893\"\u003emulti-rate billet wastegate actuator\u003c\/strong\u003e with interchangeable springs. Multiple springs can be combined to fine-tune boost pressure for your specific setup, giving tuners the flexibility needed for performance builds.\u003c\/p\u003e\n\u003cp data-start=\"1072\" data-end=\"1322\"\u003eDesigned for Subaru EJ-series engines with \u003cstrong data-start=\"1115\" data-end=\"1153\"\u003esingle-scroll turbo configurations\u003c\/strong\u003e, the ARMS BX8265 offers improved airflow capacity, durability, and consistent boost response for enthusiasts seeking stronger mid-range torque and high-RPM performance.\u003c\/p\u003e\n\u003chr data-start=\"1324\" data-end=\"1327\"\u003e\n\u003ch2 data-start=\"1329\" data-end=\"1344\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1346\" data-end=\"1833\"\u003e\n\u003cli data-start=\"1346\" data-end=\"1423\"\u003e\n\u003cp data-start=\"1348\" data-end=\"1423\"\u003e\u003cstrong data-start=\"1348\" data-end=\"1384\"\u003eBall-Bearing Turbocharger Design\u003c\/strong\u003e for improved response and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1424\" data-end=\"1504\"\u003e\n\u003cp data-start=\"1426\" data-end=\"1504\"\u003e\u003cstrong data-start=\"1426\" data-end=\"1463\"\u003eCNC Billet A2618 Compressor Wheel\u003c\/strong\u003e for increased airflow and faster spool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1505\" data-end=\"1600\"\u003e\n\u003cp data-start=\"1507\" data-end=\"1600\"\u003e\u003cstrong data-start=\"1507\" data-end=\"1547\"\u003eMulti-Rate Billet Wastegate Actuator\u003c\/strong\u003e with included springs for adjustable boost control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1601\" data-end=\"1657\"\u003e\n\u003cp data-start=\"1603\" data-end=\"1657\"\u003e\u003cstrong data-start=\"1603\" data-end=\"1655\"\u003eDesigned for EJ Single-Scroll Turbo Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1658\" data-end=\"1738\"\u003e\n\u003cp data-start=\"1660\" data-end=\"1738\"\u003e\u003cstrong data-start=\"1660\" data-end=\"1699\"\u003eSupports Up To Approximately 450 HP\u003c\/strong\u003e with proper supporting modifications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1739\" data-end=\"1833\"\u003e\n\u003cp data-start=\"1741\" data-end=\"1833\"\u003e\u003cstrong data-start=\"1741\" data-end=\"1776\"\u003eHigh-Strength Turbine Materials\u003c\/strong\u003e for durability under extreme heat and boost conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1835\" data-end=\"1838\"\u003e\n\u003ch2 data-start=\"1840\" data-end=\"1870\"\u003eTurbocharger Specifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1872\" data-end=\"2350\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1872\" data-end=\"1899\"\u003e\n\u003ctr data-start=\"1872\" data-end=\"1899\"\u003e\n\u003cth data-start=\"1872\" data-end=\"1888\" data-col-size=\"sm\" class=\"\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"1888\" data-end=\"1899\" data-col-size=\"sm\" class=\"\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1910\" data-end=\"2350\"\u003e\n\u003ctr data-start=\"1910\" data-end=\"1939\"\u003e\n\u003ctd data-start=\"1910\" data-end=\"1924\" data-col-size=\"sm\"\u003eTurbo Model\u003c\/td\u003e\n\u003ctd data-start=\"1924\" data-end=\"1939\" data-col-size=\"sm\"\u003eARMS BX8265\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1940\" data-end=\"1971\"\u003e\n\u003ctd data-start=\"1940\" data-end=\"1955\" data-col-size=\"sm\"\u003eBearing Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1955\" data-end=\"1971\"\u003eBall Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1972\" data-end=\"1998\"\u003e\n\u003ctd data-start=\"1972\" data-end=\"1987\" data-col-size=\"sm\"\u003eTarget Power\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1987\" data-end=\"1998\"\u003e~450 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1999\" data-end=\"2038\"\u003e\n\u003ctd data-start=\"1999\" data-end=\"2023\" data-col-size=\"sm\"\u003eInitial Boost Setting\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2023\" data-end=\"2038\"\u003e1.0 kgf\/cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2039\" data-end=\"2093\"\u003e\n\u003ctd data-start=\"2039\" data-end=\"2058\" data-col-size=\"sm\"\u003eCompressor Wheel\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2058\" data-end=\"2093\"\u003e54.8mm Inducer \/ 76.2mm Exducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2094\" data-end=\"2118\"\u003e\n\u003ctd data-start=\"2094\" data-end=\"2112\" data-col-size=\"sm\"\u003eCompressor Trim\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2112\" data-end=\"2118\"\u003e52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2119\" data-end=\"2170\"\u003e\n\u003ctd data-start=\"2119\" data-end=\"2141\" data-col-size=\"sm\"\u003eCompressor Material\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2141\" data-end=\"2170\"\u003eCNC Billet A2618 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2171\" data-end=\"2220\"\u003e\n\u003ctd data-start=\"2171\" data-end=\"2187\" data-col-size=\"sm\"\u003eTurbine Wheel\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2187\" data-end=\"2220\"\u003e58.8mm Exducer \/ 67mm Inducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2221\" data-end=\"2253\"\u003e\n\u003ctd data-start=\"2221\" data-end=\"2240\" data-col-size=\"sm\"\u003eTurbine Material\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2240\" data-end=\"2253\"\u003eCast K418\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2254\" data-end=\"2287\"\u003e\n\u003ctd data-start=\"2254\" data-end=\"2279\" data-col-size=\"sm\"\u003eCompressor Housing A\/R\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2279\" data-end=\"2287\"\u003e0.78\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2288\" data-end=\"2318\"\u003e\n\u003ctd data-start=\"2288\" data-end=\"2310\" data-col-size=\"sm\"\u003eTurbine Housing A\/R\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2310\" data-end=\"2318\"\u003e0.57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2319\" data-end=\"2350\"\u003e\n\u003ctd data-start=\"2319\" data-end=\"2333\" data-col-size=\"sm\"\u003eScroll Type\u003c\/td\u003e\n\u003ctd data-start=\"2333\" data-end=\"2350\" data-col-size=\"sm\"\u003eSingle Scroll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2352\" data-end=\"2355\"\u003e\n\u003ch3 data-start=\"2541\" data-end=\"2565\"\u003ePerformance Overview\u003c\/h3\u003e\n\u003cp data-start=\"2567\" data-end=\"2973\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe \u003cstrong data-start=\"2571\" data-end=\"2592\"\u003eTomei ARMS BX8265\u003c\/strong\u003e is engineered for enthusiasts looking for a balanced turbo upgrade that delivers strong horsepower gains while maintaining responsive spool characteristics. With its billet compressor wheel, ball-bearing center section, and adjustable wastegate actuator, this turbocharger provides a dependable solution for Subaru EJ performance builds targeting the \u003cstrong data-start=\"2944\" data-end=\"2972\"\u003e400–450 horsepower range\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":41222563168352,"sku":"TB403A-SB01C","price":1602.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Tomei-Ball-Bearing-BX-BB-Turbocharger-Kit-Arms-BX8265-EJ-Single-Scroll-TB403A-SB01C.jpg?v=1777695297","url":"https:\/\/www.importimageracing.com\/products\/tomei-ball-bearing-bx-b-b-turbocharger-kit-arms-bx8265-ej-single-scroll-tb403a-sb01c","provider":"Import Image Racing","version":"1.0","type":"link"}