I recently got ART testpipe and I was really excited to see the difference until the shop encountered a problem.
There are 3 bolts on each sides that connects the test pipe from the header. They were able to remove 4 bolts out of 6 but they couldn't remove the last 2. They used chemicals, heavy duty gun, etc.
Any tips on removing them?
The shop said it's 'naturally' welded due to heat+cold weather
The only alternative I have is to get the header out, and somehow cut the welded part...
Any thoughts or tips are much appreciated !