[Biturbos4] Suspension upgrade

[Robin Gibson]

Hi

I am looking to improve the handling on my 99 S4 Avant, for road use only.  Have looked at a number of supplier's websites but I am confused by the number of options - different amounts of lowering, uprated springs, coilovers, adjustable shocks, suspension kits etc etc.  Can anyone suggest an economical but worthwhile upgrade where I can order the parts online, that can be fitted by myself (or by a non-audi technician) and does not involve changing stock wheels and tyres?

Many thanks

Robin

99 S4 Avant ABT