Suspension noise.

I have a 2012 Honda Civic SI coupe. I recently lowered the vehicle with lowering springs that were technically not designed for my car, but work if you use an top isolator in the rear from the previous generation civic (springs were from previous generation as well). I also installed a camber kit on the front and rear, and the car has been aligned. My friend that is a car mechanic lubricated the top and bottom of the rear struts, and also the rear sway bar bushings. The car continues to sqweak and groan going over bumps, especially my rock driveway. The best way to hear the noises when out of the car is by pulling up on the inner fender well and it makes the same popping creaky sound. I was thinking possibly to replace the struts with aftermarket struts, ones designed for lowered vehicles, like Koni yellows, but Im not sure what to do!