Features: Direct replacement of your old injector and no modification is needed. Good quality effective O-Ring that can seal fuel vapors in and keep them from leaking. High efficient fuel sprays and High Impedance Coil for good performance. Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune. Professional installation is highly recommended. We suggest that you also check the other component of the engine before installation. Note: This installation should be done by an experienced mechanic who has access to a factory service manual and all required tools! Please check the fitment section of this listing before you bid. Please kindly check again your engine volume! This is a non-OEM product, accessory only! OE Number: 036906031LSpecification: Orifice Type: 2 Holes Disc Pin Number: 2 Pins Flow rates: Same as Voltage: DC 12V Material: Metal, Plastic Color: Black Size: 4.8x3.5x1.9cm / 1.89"x1.38"x0.75"(L*W*H) Fit for: for VW Polo/Derby/for Vento-IND 2002-2008 for VW Polo Sedan 2003-2006 for VW Jetta Variant 2002-2006 for VW Golf/Golf R32 2003-2006 for VW Golf/Variant/4Motion 2002 for Škoda Fabia 2000-2008 for SEAT Cordoba/Vario 2003-2009 for SEAT Leon 2002-2006 for SEAT Ibiza/ST 2002-2010 Package Includes:4 Pcs Fuel Injector