oldbiker, disregard the above, as the writer is unfamiliar with the product. The "piggyback"shocks from Mike's have a deservedly bad reputation. They're Chinese gas shocks with only preload adjustment and no adjustment for damping. They're also .15" shorter than stock, which is going the wrong way if you want to improve handling. You simply can't buy a decent pair of gas shocks for that kind of money. You can't get something for nothing, but it's easy to get nothing for something if the price is low enough.
You'd be far better off with a pair of Progressive or Hagon oil damped shocks. Delivery times are slow, but YSS shocks from Thailand are very good value for the money; I just installed one of their monoshocks on my Suzuki GS500E, and it's very nice.