Slotted rotors
 

i bought some slotted and vented rotors for my 8 and the front rotors are bigger than the stock rotors by 1/2 inch dunno what to do cause the caliper will not fit back to its original palce if anyone has encountered this prob please let know how to resolve thanx!!!

Think about what you just said -
'they are half an inch bigger than stock, and the caliper won't fit'

Then they are not RX-8 rotors.

Somebody screwed up in the ordering, return them.

Easy, get the right rotors. You got the wrong ones.

Kinda figured that out !!! But it has been a hassle ordering from the ebay people i ordered from!! Any ways. Thanks for the info !

Your resolve = return/ exchange

there's no other way

My 2004 RX8 has the sport suspension. The front rotors are larger for an 8 with the sport suspension that for one with the standard suspension. The rears are the same for both suspensions. I don't know how many years this rule applies.

Never ever ever buy brake parts off eBay. eBay is where companies sell stuff that wasn't good enough to sell in a proper store. At a bare minimum, your car requires reliable brakes, reliable tires, and reliable steering linkages to avoid serious accidents. You should never compromise on those parts to save money.

Anyway, hopefully you purchased through Paypal, so you can demand a refund because they sent you the wrong part.