Exhaust Bypass Valves

[John V]

Originally Posted by boggtown

Since the pipe to the muffler makes a U after the cat, we were going to cut that section out and add a pipe to make it a Y pipe. The actual vavle would be inside of that U. There will be plenty of space considering the valve is relatively small. I plan to just run the wires where the stock O2 sensors run into the car.

So, to be clear, you're going to have a 2" straight pipe which can be used to bypass the muffler using your valves?

I can tell you from experience that a 2" diameter straight pipe positioned right there will be loud. And incredibly droning.