Double_Red_Rolex, on 13 June 2012 - 02:12 PM, said:
You can also take Dremel tool and grind out the burrs at the ends of the header tube. You can take a couple milimeters off the inside of the pipe to open it up a bit. Theres a bunch of extra metal in there from when the pipe was made. I cleaned mine up. Not sure if it makes a difference or not, but every little bit helps I suppose.
Took mine off- no burrs on mine.








