Could you post some alighment spec's? or a copy of the sheet?

I've done mine 3 times this year but it still seems twitchy in the rear.

 

^^you need to list your setup - wheels, tires, suspension, etc.

 

lowered on espelir blue's
stock shocks
17x8 f 17x9 r
225 45 and 245 45

and thats all.

 

Your rear tire is taller than stock (245/40). This means you are running more rake (rear is higher) than stock which could attribute to the rear being more "twitchy".

If you want more stability in the rear you can dial in more toe-in. I would also get the correct profile tire. Right now your rolling diameter in the rear is greater than stock.

 

SORRY i ment 245 40 17 in the rear, i'm keeping with stock diameter all around

 

what was your alignment set to the 3 times you go it done this year?

 

Did the same thing this year: 3 alignments,only to find out the loose tail end was a combo of my driving,tire temp/pressure Once the tires are warmed up and your inputs are smooth,the differnence is night and day.Uk spec align and 245/40 R will get the job done.Did add some preload to the c/o but driver upgrade FTW

 

it was brought back to "o.e.m" spec's

but because it's lowered would bringing it back to oem not be oem any more...

like i believe i remember my camber is -1.5 - -1.8 front and -2.5--2.7 rear caster is what ever cause it's un adjustable and toe was zero'd or so the computer says.

the car drives straight and handles great, but high up in speeds it's like the ass end floats and i'm not talking 200kph + i'm talking liek 160kph+ or 100mph

 

If you have 0 rear toe, that could cause rear end to act up at high speed, or any speed for that matter.

 

what are your spring rates, type of shock and if it has aftermarket bars what thickness are they? Also tell me your ride height from the top of the quarter panel's wheel well (lip) to the center of the wheel and I can get you pretty close to what toe to run.