I have a 2006 Pontiac Grand Prix GXP, that I'm looking to lower. I've seen around and I like the stance of a 1.7 all around , but I have a dilemma. It seems that all the springs were replaced with some that aren't the original. I believe they are MONROE. I measured my gxp and my brothers gxp that has the original blistens, and they measure exactly the same. So which would you recommend ? I also have a question with the alignment ? Do I have to align After lowering , and if so , I've heard that people use a camber bolt kit, is that necessary? I also saw a gxp lowered 2" in front and 1.5" in rear and it looked perfect , but I don't see that option on canuck motorsports page. Thanks for any input.