Any one have an opinion one power chips, which is the better brand Jet or Hypertech? do they help performance and accelleration? my car really hesitates allot

 

My best advice is to start with a complete tune up... there is a step by step in the tech articles (i'm pretty sure)... if not... then someone will remember which post it was in and we can point you there... anyway, if its hesitating then a tune up will probably help a lot... try that and see what you think, then maybe go for a chip...
just my .02