Tire size.com says there is such a,thing as 165/55r x14 that is 21 1/8 tall, and 165/50r x 15, at 21 1/2 tall. Amazon shows several brands of each, around $50-$60 each. Each should be a couple inches shorter than your 80s aspect 13s. Might get you the room you need, cheaper than a thousand dollar set of custom headers.
