07 Civic LX, exhaust and intake
 

Hey I'm new to the car modding scene and I own a 07 civic LX sedan. I'm not racing with it it's just my daily driver but I keep hearing about exhaust, intake, and headers(or head gasket, i forgot) are good basic mods to make daily driving more fun. What do you guys recommend I upgrade first, intake, exhaust, or headers? And what are some reputable brands to buy the parts from?