Respray, use those high temp manifold spray, can get frm Mah
motor. Last abt 3 months then will start to rust again...
Tong pipe is illegal, simply the concept is to remove the blocker
stuffs inside the pipe, therefore the air can blow out smoothly
without block, so the pipe will be cooler, so rusting will less
likely to occur. If kanna caught on road, fine cheap cheap, $500
nia.

My recommendation. If you are going to keep ur bike for long, ie
more than 1 yr, then go chrome the pipe, though expensive, but no
need to worry abt rusting problem.