ken

Just got a set of Borla Tips,that I bought from DrewGS4. I love them,but have a problem. The pipe that comes out of the muffler flares out at the back end and the tips will not fit. My question is can I have a muffler shop cut the pipe were the flare starts(about 3 1/2 inches in) and put the tip on the smaller remaing piece of pipe? There would be about 4in of pipe left comming out of the muffler.

Thanks for any help or advice.
Ken