Rev9Power Rev9_ICK-003; Audi A4 98-01 Intercooler Kit This will fit : - 1998 1999 2000 2001 Audi A4 1.8T 3 x aluminum piping 5 x silicone 10x t-bolt clamps 1 x TYPE-M INTERCOOLER INTERCOOLER SPECS: max horsepower capacity : 300-350hp core length: 20" core height: 6" core thickness: 2.75" inlet / outlet size: 2.5" end to end length: 28" NOTE: Intercooler upgrade is available at an additional cost