Purchased this from RK as i love the new Blitzwing figure that was released but the few engineering problems that came with this toy were annoying. So after seeing this upgrade kit from a 3rd party i decided that it might be a good investment for this toy. So it arrived today as posted in the thread and i am quite pleased with the outcome of this product.
First thing to be attached to my figure was the shoulder attachments, there are no real instructions with the packaging, but there is a diagram on the rear of it to show you how to get it on. This is helpful as they are a little fiddly to get on but in all the process is fairly simple. It really helps the figure with the arm articulation for the figure by allowing the clip to actually seat into the pin, that was the main frustration i had with the figure. After installing the upgrade you can rotate the arms without having the whole shoulder come apart. The only thing i have found with some 3rd party upgrades is that the color matching is close but noticeably just not quite right, but for this figure i'm not to fussed. As seen bellow.



Next was the head, it is a simple fix as the original head is only on a simple swivel pin and can be removed easily. the upgrade head is a little smaller is proportion but for transformation is a lot better than the original even though it only has the one face instead of 3. The main thing i like is the piping for the eyes, it does look pretty good under the light and the head is actually molded plastic instead of painted. After the first transformation with the original i found that paint started to chip off the top of the head. This upgrade has eliminated that concern.



Finally in my review of the upgrade is that this also comes with a few added extra goodies that really set off Blitzwing. first is the missiles that attach to the back of the shoulders, the really do look good in robot mode, and as i haven't transformed him into alt mode i believe that they can be attached in either tank or jet modes. And last is his new gun, as stated before the only thing that does kind of put me off is the color matching is not quiet right, but hey a bigger gun is always better if you ask me.