Manufacturer's Part Number : OEM-18T-OBHG
OVERBORE HEADGASKET FOR 1.8T 20V ALLOWS 83.5mm BORE
This is an overbore head gasket for 1.8T 20V. This is necessary to use with pistons 82.5 mm to 83.5 mm. This gasket is standard thickness so the compression ratio will not change. It must be replaced every time it is removed.