The Hyper 7's are pretty much indestructible, except that is, for the Shock towers, the best upgrade for this is the Hyper St Pro ones which can be purchased from Apex Models,
Front -
http://www.apexmodels.com/gbu0-prodshow/H86201.html
Rear -
http://www.apexmodels.com/gbu0-prodshow/H86212.html
Have ordered in some for myself, although you can go for a cheaper option (which is what I am doing at the moment until my Hyper St ones arrive) for the meantime by doubling up your existing shock towers with a set off of eBay-
http://www.ebay.co.uk/itm/HYPER-7-TQ...item3cc8b836ba
Also, the hinge pins are a must to be replaced, you can go to your local B&Q and buy these-
M4 Rod -
http://www.diy.com/nav/fix/hardware/...ia-4mm-9283907
M4 Nylock -
http://www.diy.com/nav/fix/hardware/...0-W-M4-9708501
So much quicker and easier to work with compared to using hinge pins and e clips!!!
Also, the shocks, if you get a Black Edition, it will come with Big Bores although the ones to get are the Hong Nor Big Bores, if you keep an eye out on eBay you can sometimes find a full set for around £30-£40, well worth it!
Hope this helps?