From the picture it’s hard to tell the diameter of the bypass pipe, but if the pipe is 1.5" you can go with the 2" valve and use a reducer. I personally don’t like the electric version of these valves, but it can be done with both.
2.0" Electric Exhaust Cutout Downpipe Kit E-Cut Catback Valve Manual System | eBay
If you look at the link I posted before, the guy shows in detail the hookup of the vacuum system and the electrical portion of the control.
Not too complicated.
I started with 2” -1.75” reducer so the bypass pipe is 1.75, and the valve is 2”.
2” is the smallest valve I could find. I’m currently straggling with the 180 degree U pipe that I will probably have to fabricate, or change the plan and go with 2”-1.5” reducer and 1.5" piping.
You can see more about project here:
General piping question
I still need to work on my fabrication and welding skills so I’m learning.
