exhaust question

[clio_massive]

hi, my backbox decided to fall off and was wondering would it be ok to drive without it?

Im not sure but i was told it was more to do with the emissions rather then damage to the engine, is that correct?


btw it sounds awesome

 

[HazzyP]

no problem, wont damage anything.

 

[clio_massive]

will i see a major change in mpg?