Originally posted by thedawg
You put the dogbone spacer bracket on backwards. I have GSX calipers, AEM 12.5" rotors, on a FWD. They fit fine, and are most definitely not a waste of money.

no it's not the spacer bracket. this has nothing to do with caliper placement. the hat of the rotor did not seat comletely on my car. he's having the same problem. i'm not sure if it's a manufacturing problem or if it's a model/year difference in our hub assemblies. i posted many times with questions when i was having the problems but got no helpful info. AEM said the same thign to me. i bought my kit from RRE and they weren't too helpful either. they pretty much said "it fit on our cars".

i say if you can't get it to fit perfectly RETURN IT NOW. it'll get worse over time and you'll be out about $350 or so when you have to replace them. even if my kit had worked perfectly, in retrospect i wish i had not gone that route. just the fact that the brake pads are not completely on the rotor seems kinda ridiculous to me. you are DECREASING the contact area. perhaps this is offset by the increased torque created by increased the moment arm but still. when the over hang area of the pad breaks off it will rub against the outer edge of the rotor. this is irritating as fuck.

if you want big brakes get a REAL kit (brembo, wilwood, stoptech, etc). if you're on a budget get GSX calipers and upgraded stock size rotors. i'm sure the AEM kit functions a lot better if you purchase their calipers but at that point you're on the same price level as the other brands.