Anyone have any ideas how to make the scooby more stable at high speeds?

Since fitting the large AP Racing brakes front and back to my WR1 the car seems to judder at around 100mph when on flat tracks.

Balance/alignment/tracking etc all checked and are fine, just wondered if Anyone else had seen the same thing after putting AP's on?

Cheers

Mega

 

Is this juddering only when your braking hard?
My guess (and it is a guess) is that its either your pads or you have warped your discs

Tony

 

Nope im talking about when accelerating. Braking is fine and not warped disks/pads.

 

Were they fitted professionally ? Correctly shimmed up etc.

Only guessing.

dunx

 

Well they were fitted by KT Green a subaru dealer, should i have got them fit somewhere else?