Audi S5 Fuel Pump - APR - High Pressure Fuel Pump - 08-12. Precision-engineered upgrade for the 4.2L V8 (post Nov 2008) that increases available fuel volume for demanding builds.

APR increases HPFP displacement by 41% via a larger internal bore, helping keep rail pressure stable under load. Internals are USA-machined to extreme tolerances (.00004"/.00005") from heat-treated bearing-grade stainless. A DLC-coated plunger, matched spring, new seals, and the retained factory pivoting head enhance reliability and reduce side loading. Genuine Hitachi pump bodies and sensors are used, and each unit is assembled and bench-tested in house.

Features

• 41% greater fuel volume (HPFP displacement)
• Extreme .00004"/.00005" machining tolerances
• DLC-coated plunger; bearing-grade stainless
• Matched spring; all internal seals replaced
• Retains factory pivoting head; bench-tested

Have questions about fitment or setup? Call us: Texas 512-982-9393, California 562-981-6800. We offer professional installation and customization at our Austin, TX and Los Angeles, CA area facilities.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov