just don't connect the 2nd one
no, screw it into the pipe but just don't connect the plug (electrical)
Had this fitted today, Wow what a noise.
The guy who fitted it said the standard Cat would have to be welded in if i wanted to put it back in place, is that true?
I thought it would be bespoke so to speak just drop the decat out and bolt the cat back in.
This-bit of a pita to do, but no different procedurally to fitting the decat.
So it can be bolted in place no welding involved?