recently started a cossie rep project, i have fitted a set on 17s to it before i lower it for an idea of how low i want go.

the standard arch gap is a massive 85 mm on the front at the moment

i was wondering since a cosworth is lower from factory in theory if i brought a set of 40mm cossie springs instead of the sierra 40mm ones would it in fact lower it more than 40mm?

thanks

 

What you say I suspect, also the poundage ratings etc will be different.

Martin