Hey guys. I was wondering....before I do the modification to my car (bolt on mods) is there anything that I have to do as in do I have prepare the car before I do these mods. If I have to, what kind of preparation exactly do I have to do?

 

full tune up..make sure the car is runnin in tip top shape then start moding. Cus it sux to spend x amount on a mod to find out you should have spent that cash on a replacement part or something along thos lines.