Generally dropping it reduces travel so it's going to get rougher than stock.
An easy and budget friendly option is to buy lowering springs (H&R Sport/Super Sport, TRD etc) and swap them onto your OEM Showa coils yourself via this thread. I believe H&R SS are 2"
http://www.ft86club.com/forums/showthread.php?t=32414
They aren't tightly compressed and can be swung out from the tire well to switch while still connected at the hub, just releasing the tops. Little trim of the bump stop might be necessary but spring manufacturer lets you know. I was surprised how easy it was.
Not a race solution obviously but great for a couple hundred bucks.