In winter I had two days non starter it's ok now but in -4 degree the battery was nearly dead thinking of upgrading battery to 096 heavy duty and the earth leads can you upgrade the leads and if so how ? It's a jtd 1.9
The combination of a heavy-duty battery and the 'Greek' extra earth leads is a winner! Thoroughly recommend this for keeping the electrical gremlins at bay...
AFAIR I attached mine to cylinder head, gearbox, ECU and body. And by the way, you don't need to make the leads up like the Greeks do. Most good motor spares factors sell earth leads already made up with the ends in place in set lengths. Just measure up what you need and buy them.