Another kit is the Blow-By Racing kit. http://blowbyracing.com/bbrsiexsy.html
I have the cervinis kit, but this one also has a magnaflow muffler as i remember. It also has more clearance than the cervinis kit.
I have a cold air intake, but i dont have either of those tuners. I have an sct tune and off the line, my tires spin for a few seconds on dry roads with traction control off, but my tires only have a few millimeters of tread left too.
No, thats not the Cervinis spoiler. I lost the one i got from them, so i got a new one from the shop i brought my car to. And yes, i did remove the old spoiler and the new one actually attaches through the stock holes.