C36 Mods questions
so First I like the sound of the car, but I would like to get it, a little higher
if you know what I mean. But After looking a lot on the web, I saw that you could lose some power if you change your exaust line. So I wonder If there's a way to get a better sound without losing power.second of all, I got a problem and I don't know how to solve it. When I play some music in my car when i put some bass I ear an annoying Metal vibration sound. Some peoples told me it's my back light in the car that is a bit loose and that vibrates on my back windsheild..... could anyone help me with this pls ?
thx
Ps : sorry for my weak english, it is not my first language
To check if its the back light just pinch the sides and pull it off and turn the music up to see if it goes away



