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Kings/Boge Lowering Kit $695hey i was wondering what is the best suspension upgrade
in best i mean bang for buck
Coilovers do SFA except change ride height. What determines how a car handles is the quality of the damper, be it a standard alone strut or shock normally, or a damper insert in a coilover. There isn't an instance in the world where $1500 worth of coilover is going to out perform a $1500 Bilstein and King springs combo. Said $1500 coilovers probably only has damper inserts worth $500-$600 at best (by the time you take away springs, strut tops and a fancy anodized threaded strut body) which is no better than a KYB setup....However, coilovers are definitely the way to go with sway bars as far as handling is concerned.
kings springs & munroe gt shorthen shocks, set me back $700 fitted & wheel aligned. If i had to do it again i'd prob go pedders xa coilovers as they're roughly $2200 fitted nowadays.