Garage 56 imply you do not need take anything out, you just need a 3/16 ball end hex key
"At Garage 56 we mount our ECU's with Velcro. It's a pretty standard thing in motorsport: it helps isolate the ECU from some of the vibration in the chassis.
We can't guarantee it'll prevent an ECU failure, but it's such a cheap tweak, why not?
We find a 3/16 ball-end hex key (Allen key) works in the top bolt holding the ECU on. Don't know what we're talking about?... all will become apparent when you try to remove the ECU!"
