maybe? from what i got from the cognito guy, the cognito arms will still hit like the stock arms, they just help with the ball joint angle, as well as bolt in vs press in
http://www.cognitomotorsports.com/media/pdfs/7011.pdf
theres a link to the instructions for the arms
8. Do not rely on the factory frame perch to limit down travel. You must also install a limit strap kit available from Cognito to limit the down travel to protect the upper control arm from damage against the frame perch.
Limiting strap kit is necessary to prevent upper control arm damage when using this upper control arm kit to maximize suspension travel. This will prevent arm to droop stop damage.
those are quoted from the instructions, maybe im not understanding it? not trying to give false info,