I've got eibach pro-kit springs on my 2011 Mazda 3 sedan. Springs are great, but I had a weird clunk sound coming from the front left. I got some koni orange struts and the noise went away for about a month and now it's back. I found out that the spring is hitting the upper inside part of the car close to the top of the strut. What's causing this? And it's just the left side.