{"product_id":"apr-09-15-audi-tts-quattro-high-pressure-fuel-pump-no-rebuild","title":"APR 09-15 Audi TTS Quattro High Pressure Fuel Pump - No Rebuild","description":"\u003cp\u003e\u003cstrong\u003e⚠ No shipping to California due to CARB regulation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe APR High Pressure Fuel Pump (HPFP) increases maximum volume of fuel the HPFP can deliver by 41% over stock! In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances.How the direct injection system works:A low pressure fuel pump (LPFP) in the fuel tank delivers fuel to the high pressure fuel pump (HPFP) at roughly 4 to 6 bar. Fuel pressure is then bumped up to a maximum of 110-130 bar, depending on factory parts, with the HPFP. Finally, high pressure fuel is delivered to the injectors, which spray directly into the cylinders.The problem:The volume of fuel the HPFP pump can displace is directly tied to the displacement of the pump (Internal bore size, and cam shaft dictated stroke), and engine speed. The pump is driven off of a three lobe cam shaft, and as such, the pump cycles at 1.5 times the engine speed. Even the factory K03 and K04 turbochargers are capable of taxing this system, especially in the mid to lower RPM range where fuel volume is lower.The APR solution:We dramatically increase the volume of fuel the HPFP can displace at every RPM by increasing the displacement of the HPFP. This is accomplished by increasing the bore diameter of the pump's internal pressurizing cylinder. It's important to understand, despite the name, a HPFP upgrade is not necessary designed to increase the engine's fuel rail pressure. The primary goal is to increase the volume of fuel available, which will keep fuel pressure steady even in the most demanding of situations!High quality components and extreme tolerances:The HPFP internals must be machined to extreme tolerances and installed in a clean environment or the pump can easily fail. Dimensional tolerances on the APR HPFP are as tight as .00004\" and geometric tolerances are as tight as .00005\".\u003c\/p\u003e\u003cp\u003eFits 2006-2008 Audi A3 - 2005-2008 Audi A4\/A4 Quattro - 2008-2009 Audi TT - 2009-2015 Audi TTS Quattro - 2007-2016 VW Eos - 2012-2013 VW Golf R - 2006-2009 VW GTI - 2006-2010 VW Jetta\/Passat\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDramatically increases the volume of fuel displaced by the HPFP by 41%\u003c\/li\u003e\n\u003cli\u003eMaintains higher pressures under demanding situations\u003c\/li\u003e\n\u003cli\u003eHeat-treated bearing-grade stainless steel material\u003c\/li\u003e\n\u003cli\u003eFully machine tested and broken in before shipping\u003c\/li\u003e\n\u003cli\u003eUpgraded and weight matched spring\u003c\/li\u003e\n\u003cli\u003e.00004\" dimensional tolerances\u003c\/li\u003e\n\u003cli\u003e.00005\" geometrical tolerances\u003c\/li\u003e\n\u003cli\u003eNew factory pump included\u003c\/li\u003e\n\u003cli\u003eFully rebuilt in house\u003c\/li\u003e\n\u003cli\u003eSpring seals replaced\u003c\/li\u003e\n\u003cli\u003eSupports big power\u003c\/li\u003e\n\u003cli\u003eDLC coated piston\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":47946606542999,"sku":"aprMS100016","price":1424.81,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0497\/9697\/2695\/files\/aaab45662ee17dc3191cbceab2f301e2L.jpg?v=1782298967","url":"https:\/\/nlpperformance.com\/products\/apr-09-15-audi-tts-quattro-high-pressure-fuel-pump-no-rebuild","provider":"Next Level Performance","version":"1.0","type":"link"}