marts-astra said:
When i do this pre-cat removal tommorow, will it change the note of the irmy back box? and if so in what way? cheers
Martyn
You may hear a slightly deeper noise at higher revs and some people say that it pop's if you change gear hard.
TBH i could not tell at all from a car that had one to a car that didnt with the same exhaust setup.