Question: what are mods for a car?
Answer: Tires. If you want your car to handle better, start with a good set of tires. ... 
Spark Plugs. Better spark plugs are an easy, affordable swap that can make all the difference. ... 
Engine Control Unit (ECU) Flash. ... 
Bushings. ... 
Cold-Air Intake. ... 
Infotainment. ... 
Back-Up Camera. ... 
Data Monitoring.