i'm having fitment issues with my pypes x-pipe bolt on. i have an exhaust leak on the driver's side where it bolts up to the headers. the passenger side is fine. any ideas to fix it? i tried to weld the leak shut but i had no luck.

 

Be sure to tighten each side of the flange evenly at intervals or it may hang up on one side leaving space for a leak even though it might seem to be on tight. Happened to me not too long ago when I was installing my headers.