2006 honda civic ex
 

i know people have asked this question before but i have different questions. New to this whole car thing ( im a truck guy ) i want to know what beginner mods i can do to the car and what sites i can find good parts at. i know i can put headers and exhaust on it and ive been hearing allot about a cat back exhaust but as you know im a truck guy so i wast thinking headers, and a flowmasters with a 3" pipe, no cat and a 4" tip ( let me know if thats a bad idea). other mods i have questions about and want to know sites for as well as any other suggestions is the intake and suspension and other computer mods.