brake upgrade, anyone tried these??

[sickboy]

Found these on trade me any thoughts??
Commodore Uprated Disc Brake kitsets for sale - TradeMe.co.nz - New Zealand
:beer chug:

 

[V8Silverfox]

I had seen these as well on trademe ... and also wondered about these ...

Holden 296 x 28 Sports Brake Discs for sale - TradeMe.co.nz - New Zealand

 

[Immortality]

Found these on trade me any thoughts??
Commodore Uprated Disc Brake kitsets for sale - TradeMe.co.nz - New Zealand
:beer chug:

i had looked at these, however, these rotors are 22mm thick and the VT style rotors are 28mm thick. so if you use VT calipers on these rotors and the pads are worn, the pistons could possibly pop out of the caliper. worth the risk? not in my book

 

[slo_firo]

not good at all - Have been told many times to steer clear of this, You need to use Group A rotors for it to work