I have h techs on my car. When I went to get an alignment they said I need a rear camber kit. I've tried two different places and they say the same thing. What should I do?

Go to the dealer. You DEFINITELY do not need a camber kit with just HTechs... that's ridiculous. Find a shop that is actually competent.

Could putting bigger rims and tires on the car effect them from aligning the car?

naw. that place is retarded. with s-techs my camber could be exactly zero but i recently put bout 1.5 degrees negative to prevent rubbing in the rear. go to another place.

lol the tc has stock camer adjustments for the rear im on s techs and put my camber back to zero just fine

i had terrible negative camber with TRD's. i went to two shops also and they could not get it into spec. pick up the spc rear camber kit from ebay and put them on. i have them on and work great.