Rear Boot/Trunk Gap

One of the most frustrating things about fitting the wider rear wings is getting a factory look gap between the top of the wing and the boot/trunk lid. Originally I was using cardboard covered with tape but after a reading a bodywork book I came across sheet wax. As its name suggests this is a sheet of wax with self adhesive tape on one side that can be cut into strips, stuck to a straight

Available in different sizes and widths - IIRC I bought mine off ebay



After the wax has been cut into a thin strip stick it to the edge of the boot/trunk lid which should leave a thin gap ready for filler



Fill the gap left with filler



I had to do it in 2 goes to cater for the rounding of the lid



Once the filler has set you should be able to open the lid and peel away the wax leaving a very consistent gap which easily matches the factory gap