{"product_id":"rss-608-harmonically-damped-underdrive-performance-pulley-kit-986-987-996-997","title":"RSS - 608 - Harmonically Damped - Underdrive Performance Pulley Kit (986, 987, 996, 997)","description":"\u003cp\u003eThe RSS Harmonically Damped Underdrive Pulley is ideal for engines that are running light weight flywheels, engines that are built - bored\/stroked and engines that are driven hard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOffers improved HP \u0026amp; TQ by reducing drag from the power steering pump, A\/C, water pump and alternator without detrimental effects on said ancillary systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDampens\/reduces internal engine harmonics for improved engine performance, efficiency and longevity. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eRecommended for street or track use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFits on all Porsche 986, 996, 987, 997 models. Does Not Fit 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.\u003c\/p\u003e\n\u003cp\u003eInstallation tool (wrench) and new OEM Pulley Washer included:\u003c\/p\u003e\n\u003cp\u003eDyno Image shows HP \u0026amp; TQ gain on 2005 997.1 Carrera S:\u003cbr\u003eBaseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers\u003cbr\u003eModified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:\u003cbr\u003e+16 HP \/ +8 ft lbs TQ\u003c\/p\u003e\n\u003cp\u003e*NOTE: We recommend using\/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 608 Kit)\u003c\/p\u003e\n\u003cp\u003eWe recommend using the appropriate length belt RSS # 6PK which can also be purchased on our website.\u003c\/p\u003e\n\u003cp\u003eMADE IN USA\u003c\/p\u003e","brand":"RSS","offers":[{"title":"Default Title","offer_id":49833098346755,"sku":"608","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0604\/9264\/4611\/files\/608_1__33547.webp?v=1792018905","url":"https:\/\/www.elite-performance.com\/products\/rss-608-harmonically-damped-underdrive-performance-pulley-kit-986-987-996-997","provider":"Elite Performance","version":"1.0","type":"link"}