Upgrade to the newer 2.0T/R8 coilpacks using this Coilpack Adapters and enjoy longer coilpack life, smoother idle, increased off-boost power, and improved fuel economy. d to 48 hours) Allows you to upgrade to newer 2.0TFSI / Coilpacks In-house CNC machined billet aluminum adapters Looks great in your engine bay Direct fit for ALL 1.8T 20V engines Complete set with stainless steel bolts Application: For - A4 1996-2001 (B5 - B5.5) 1.8T 20V engines For - A4 2002-2005 (B6) 1.8T 20V engines For - A6 1998-2004 (C5) 1.8T 20V engines For - A6 Allroad 1998-2004 (C5) 1.8T 20V engines For - TT 2000-2006 (MK1 - 8N) 1.8T 20V engines For - A3 1996-2003 (MK1 - 8L) 1.8T 20V engines For - S3 1996-2003 (MK1 - 8L) 1.8T 20V engines - Golf 1999-2005 (MK4) 1.8T 20V engines - 1999-2005 (MK4) 1.8T 20V engines - & GLI 1999-2005 (MK4) 1.8T 20V engines - 1998-2011 (1C - 9C - 1Y) 1.8T 20V engines - 1998-2005 (B5 - B5.5) 1.8T 20V engines No installation guides are included, we highly recommend to professional