Buying some Lowering Springs

[Yasuo]

I'm about to pull the trigger on getting a pair of lowering springs. I want to go as low as possible without scraping the wheel wells.

I'm running 1 7/8" long tube headers to 3" collector pipes, so I am a little concerned about clearance with those as well.

here is some pictures of my current wheel gap with stock height. I have about a 2 finger gap on the rears, and a 4 finger gap on the fronts.




I want to do a 1.5" or lower drop without going to coilovers right now, so I'm thinking about running these;

http://www.phastekperformance.com/20...gs-camaro.html

$210 for all four doesn't seem too bad, but my questions are;

1.) Is anyone running these?
2.) If you're running a 1.5" drop with 20x11 wheels, could you post a pic?
3.) Are these even worth it?