Canadian/American Border Question (Transporting Goods)

The only thing I can think of right now is they might decide to be assholes and rip apart the seats looking for drugs, which would defeat the purpose of going over there and buying them. They do it to cars, why not do it to parts of cars? Get what I’m saying?

I asked my mom and she suggested maybe installing the seats in canada, if that is at all possible?

Or there’s this: http://help.customs.gov/cgi-bin/customs.cfg/php/enduser/std_adp.php?p_faqid=218&p_created=1043364937&p_sid=fEJnDmti&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPSZwX3NvcnRfYnk9JnBfZ3JpZHNvcnQ9JnBfcm93X2NudD01NzImcF9wcm9kcz0mcF9jYXRzPSZwX3B2PSZwX2N2PSZwX3NlYXJjaF90eXBlPWFuc3dlcnMuc2VhcmNoX25sJnBfcGFnZT0x&p_li=&p_topview=1