The Blox LCA's and Megan lower tie bar won't do fuck-all to make your car drive any better. They're show pieces and have very little value in terms of handling. Plus as Dylan said, the Blox bushings suck major donkey penis.
First off, I'll start by saying the driver makes the biggest impact on the handling of a car. If you're interested in driving/racing, surround yourself with people who know what they're doing and learn
In terms of bolt-ons to help your car drive better....
My suggestion: start with some Koni yellows, Ground Control coilover sleeves, and a blox 21 mm rear sway bar. A master bushing kit and some good F/R upper strut tower braces (Carbing, Cusco, DC, Mugen) would also help by improving response. You may also want an ASR subframe brace for the sway bar.
Most importantly get yourself a good set of tires and brakes. These two items make the biggest difference on the handling of a car. Start with a set of Yokohama S.Drives and some Hawk HPS pads :thumbs up.
Alignment makes the second largest impact on handling, so make sure you get some quality camber kits. NO EBAY SHIT.
Don't over-lower it.
Function7 are the only aftermarket LCA's worth using IMO.