Beware.
I received 2 Fabcrap tunnels last year that were some of the poorest fabrication I have ever seen. The first tunnel was way to narrow for the bulkhead ( 3/16 ) and the 2nd was bent so poorly that they pie cut the top to make it the right size, making it pop can about an inch up and an inch down. They swore up and down that this was normal and to just install it, and that's the way they have been doing it for years.
It took me getting a attorney to get my money returned.
In the process I did take the tunnels to a few sheet metal shops to ask if this was right. All three shops said absolutely not, there is no reason a precision shop cannot bend within 5 thousandths of a customers specs.
Just thought you should know.
Good luck with your project.
