Ok, people always talk about their favorite modification, but what was your worst mustang modification ?
I have 2 mods ive always regretted. First is the 5 bolt conversion, i always loved the way she looked with ponies, after i swapped i new i made a mistake.
2nd, turbo kit

Waste of cashola and time. Decent power but just took the fun out of the car.
What about you guys, any mods not sit well with you ?