Very simple process with the right tools. Brembos just fit under my 20 inch wheels so 19s will definitely need some spacers. Worst part of the process was bleeding the lines.

Everything was shipped fast and included everything needed to install in a matter of minutes. Best upgrade I've done in a while.

Excellent condition, good packaging

First, the system arrived in perfect, gleaming condition and arrived faster than expected! Everything went smoothly on the install except my 19" rims did require a spacer and longer studs. It would be nice if they offered a matched spacers-and-studs kit for those needing it. Perhaps my '09 is like most G8s, but the '09 1/2 might have clearance with their rims. I expected this, so I had parts on hand. The kit is awesome and great looking and much smoother than stock, requiring a lot less pressure. They feel very strong, and I like that it's a straight upgrade to the GXP system in the '09 1/2 cars. This is an extremely good value, and of the highest quality in every piece, including the mounting hardware. I'm more than 100% satisfied! Install notes: Drilling the holes out is not difficult and only takes 30 seconds each because it's not much bigger, and aluminum; but I needed a 1/2" shank drill to use the large bit required. Pads went in easy, brakes bled quickly with less than a pint of brake fluid used. I bought the $79 bench top press at Harbor Freight and it made installing the studs much easier after heating the casters. I've been waiting for an excuse to buy it, so...

Before purchasing the product, I got in contact with one of the employee and he made sure I knew what I need for this install. I sure you that 1 inch spacers are all you are going to need to make these brakes work. By the way these are Brno brakes. Highly recommend them