As with any tire with a lower profile, you will feel the road more. If you are going with a wider tire, your steering will feel a wee bit laboured at first (until you get accustomed to it) as there is more tire in contact with the pavement hence more resistance. Lowering is a personal preferance but unsightly wheel gap takes away from pimpin rims IMO. Lowering will further stiffen your cush ride but will obviously lower the centre of gravity hence improving your cars handling.
With any mod, espeically lowering, make sure you take it to a good shop.
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