i took off my white bros. pipe to inspect the header(stock one)... and noticed it is totally cracked where the pipe meets the baffle!! i got to get it welded. i was looking at the inside to see what to grind down,i see the bump that is part of the flange it looks like..it looks slightly bigger i.d. than the pipe...i am concerned that if i grind that out it might get weak and break. is that what guys are saying to dremel out? is it safe to do so? i think the guy who put the pipe on forced it to fit and the stress caused the pipe to crack at the weld. hmmm.... thanks for any input.