They are Falkner springs from Merlin Motorsport. They are only about £12-25 each depending on the lengths and poundage. I think for a stripped out track car 300-400 lb front and 400-500 lb rears is a good starting point looking at threads on here.
I haven't driven it much with the ledas, but combined with the RS1600i front ARB and MEF TCA's it made a huge difference to how the car handled when it had GMax shocks and springs and standard gear.
Yeah that sounds good Muz
Im building myself a MEF style adjustable rear end and hopefully fitting some adjustable TCA's too. Ill ask the bloke what sort of lengths to run as again im unsure ?
Do you mind me asking if the 16i anti roll bar was much of a pain to change from standard ? I know my car used to be fitted with one when the previous owner had it and it has two extra captive nuts on the chasiss to bolt it into.
Ill look on Merlin Motorsport anyway.
Cheers pal