New from Germany! DTP DSLA 520 nozzles are a 5-hole, .205 nominal hole size nozzle with improved spray pattern compared to stock Bosch nozzles. Stock size nozzles are .184 hole size, so these injectors provide an increase in fuel flow netting a power increase of 10-15 ft/lbs and ~10 horsepower. These nozzles are a great starting point for a Stage 2 type build with chip tuning and a mild turbocharger upgrade (like a VNT-17). Includes injector seals. Printed instructions for installation and how to manually adjust your IP are included Compatible with the following engines Volkswagen Golf TDI MkIV (A4 chassis) w/ ALH Engine (1999-2003) Jetta TDI MkIII (A3 chassis) w/ AHU Engine (1997-1999) Jetta TDI MkIV (A4 chassis) w/ ALH Engine (1999-2003) Jetta Wagon TDI (A4 chassis) w/ ALH Engine (2002-2003) New Beetle TDI (A4 chassis) w/ ALH Engine (1998-2003) Passat TDI (B4 chassis) w/ AHU/1Z Engine (1996-1997) Warranty