{"product_id":"qt-sytytyspuola-bmw-bmw-b38-b48-b58-s58","title":"QT Ignition Coil BMW B38, B48, B58, S58","description":"\u003ch2 data-end=\"106\" data-start=\"0\"\u003ePerformance ignition coils\u003cmeta charset=\"utf-8\"\u003e For BMW B38, B48, B58, S58 engines.\u003c\/h2\u003e\n\n\u003ch3\u003e \u003cem\u003eEnsure adequate ignition with QT ignition coils.\u003c\/em\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e \u003cem\u003eThe QT Ignition Coil is a more affordable, longer lasting and more tune-friendly alternative to the OEM ignition coil. No more broken coils and misfire codes.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3 data-end=\"508\" data-start=\"292\"\u003e More efficient ignition energy (+10% vs. OEM)\u003cbr data-end=\"341\" data-start=\"338\"\u003e\n\n\u003c\/h3\u003e\n\n\u003cp data-end=\"508\" data-start=\"292\"\u003e Higher energy transfer ensures optimal spark throughout the dwell time, improving ignition efficiency, especially in tuned and high-revving engines.\u003c\/p\u003e\n\n\u003ch3 data-end=\"508\" data-start=\"292\"\u003e For hard driving - Better spark formation with high boost pressure\u003cbr data-end=\"1177\" data-start=\"1174\"\u003e\n\n\u003c\/h3\u003e\n\n\u003cp data-end=\"508\" data-start=\"292\"\u003e Ensures ignition performance even at high boost pressures and rich mixtures, which promotes cleaner combustion and better efficiency.\u003c\/p\u003e\n\n\u003ch3 data-end=\"948\" data-start=\"747\"\u003e Save money - Longer service life and mechanical durability\u003cbr data-end=\"793\" data-start=\"790\"\u003e\n\n\u003c\/h3\u003e\n\n\u003cp data-end=\"948\" data-start=\"747\"\u003e Advanced insulation materials and a winding structure that reduces thermal stress prevent overheating and internal short circuits, extending the component's lifespan.\u003c\/p\u003e\n\n\u003ch3 data-end=\"948\" data-start=\"747\"\u003e Forget about misfires - More stable performance under heavy loads\u003cbr data-end=\"563\" data-start=\"560\"\u003e\n\n\u003c\/h3\u003e\n\n \u003cp data-end=\"948\" data-start=\"747\"\u003eDesigned to withstand continuous stress — the right choice for high-performance and tuned engines that require reliable ignition voltage across the entire load range. (where the OEM ignition coil fails)\u003c\/p\u003e\n\n\u003ch3 data-end=\"1111\" data-start=\"950\"\u003e Heat resistance up to 140 °C\u003c\/h3\u003e\n\n\u003cp data-end=\"1111\" data-start=\"950\"\u003e Operating temperature in continuous use up to 120 °C – performance remains stable even at high temperatures without loss of power. (see comparison with original)\u003c\/p\u003e\n\n\u003ch3 data-end=\"1323\" data-start=\"1113\"\u003e Optimized primary and secondary windings\u003cbr data-end=\"134\" data-start=\"131\"\u003e\n\n\u003c\/h3\u003e\n\n\u003cp data-end=\"1323\" data-start=\"1113\"\u003e The increased number of turns and high-quality copper wire improve current conductivity and ensure high, consistent ignition voltage even under heavy use. \u003c\/p\u003e\n\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-testid=\"conversation-turn-14\" 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)] @[37rem]:[--thread-content-margin:--spacing(6)] @[72rem]:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\n\u003cdiv class=\"[--thread-content-max-width:32rem] @[34rem]:[--thread-content-max-width:40rem] @[64rem]:[--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\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"4e4c8b2c-b16a-47f8-99c4-4e8855d731c0\" dir=\"auto\" 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-5\" data-message-model-slug=\"gpt-4o\"\u003e\n\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\"\u003e\n\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words dark\"\u003e\n\n\u003ch2 data-start=\"0\" data-end=\"50\"\u003e Superior ignition energy – performance comparison \u003c\/h2\u003e\n\n\u003cp data-start=\"0\" data-end=\"50\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0713\/9937\/5126\/files\/coil_output_energy_qt.png?v=1753990320\"\u003e\u003c\/p\u003e\n\n\u003ch3 data-start=\"0\" data-end=\"50\"\u003e The diagram illustrates how QT ignition coils provide more efficient ignition energy compared to an OEM ignition coil. \u003c\/h3\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/article\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"674\" data-start=\"108\"\u003e\n\n\u003cli data-end=\"200\" data-start=\"108\"\u003e\n\n\u003cp data-end=\"200\" data-start=\"110\"\u003e At less than 1.5 milliseconds, the performance of both sides is still at the same level. \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-end=\"341\" data-start=\"201\"\u003e\n\n\u003cp data-end=\"341\" data-start=\"203\"\u003e When the duration increases to 2.0 milliseconds, the energy delivery of the original coils begins to decline significantly, but the QT coils maintain stable power.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-end=\"487\" data-start=\"342\"\u003e\n\n \u003cp data-end=\"487\" data-start=\"344\"\u003eAt 3.0 milliseconds, QT coils produce up to approximately 25% more energy – a significant advantage in tuned or high-revving engines. \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-is-last-node=\"\" data-end=\"674\" data-start=\"488\"\u003e\n\n\u003cp data-is-last-node=\"\" data-end=\"674\" data-start=\"490\"\u003e Even at high temperatures of 140°C, QT coils maintain a stable energy level of 70 mJ, while original coils suffer a significant power reduction or stop working altogether.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003cstrong\u003ePrice per piece!\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eChoose the correct amount depending on the machine type.\u003c\/p\u003e\n\n\u003cp\u003e Replaces the following OE part numbers:\u003c\/p\u003e\n\n\u003cp\u003e 12138643360 \/ 12137619385 \/ 12138615991 \/ 12138678438 \/ 750990012\u003c\/p\u003e","brand":"QT Parts","offers":[{"title":"Default Title","offer_id":51182286864731,"sku":"QT-IGN-008","price":48.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/9937\/5126\/files\/DSC03920-min.jpg?v=1755615473","url":"https:\/\/www.qtparts.fi\/en-gb\/products\/qt-sytytyspuola-bmw-bmw-b38-b48-b58-s58","provider":"QT Parts","version":"1.0","type":"link"}