just take it off and have a professional weld it. they are stainless steel. i have had about 12 of thesze welded with great results i driven thousands of miles a year my cars are all modified and these get extremely hot and i've had great luck.
I have a set of beautiful untouched (besides paint) ones off a 24k car $225. I also have a nice set that needs the driverside welded $100. If anyone interested please contact me via my e-mail speedy@wowway.com