Hi any 1 help bough a bore 4 fitted it no change had another look seen center box so removed put straight through pipe on of net got little bit louder had sum 1 drill cat out today just sounds like I have a Little bit of leek on original back box on do deep tone dose any 1 no why or can any 1 help and all so got dump valve on and it's realeasing through the revs rather than inbetween vectra c 19cdti 150 with green dtuk box on sum 1 help please
Hmmm, I've tried to read that post and tried to put in some commas and full stops where they seem appropriate.....
I think the original exhaust was replaced. And someone drilled out the cat from his exhaust? (I didn't even know that rather large section of exhaust
could be "drilled out"
)
And the dump valve is releasing air through the revs rather than in between. I
think this means the valve is leaking under pressure rather than releasing when the throttle is lifted.
Other than that I haven't a clue.
OP, please come back and add some punctuation, spelling, and sentence construction. Once we know what the problem is we may be able to help.
