I had my '99 Passat 1.8T MOT'd (for those outside the UK that's an annual road worthiness check) in January and was informed that, although it passed, the exhaust was 'blowing'.
A few months down the line, no noises or rattles and everything is running smoothly. I took a quick look under the car just after starting it, however, and could see water being blown out of the joint where the pipe that goes under the passenger compartment goes into the muffler towards the back of the car.
Anyone any advice on whether this is a major cause for concern that I should have rectified immediately, or if I could let it go for a while. I also don't want to get ripped off by some dodgy exhaust fitter telling me I'll need a new cat or suchlike, so some clues as to work required and ballpark cost (dollars or sterling) would be very helpful.
Thanks.