I've decided I'm going to get an e-cutout.. but I don't know where to put it. I can put one when the Y merges into one pipe, or I can get a double one and put it in the headers. Does anyone have any suggestions/ideas? Pros/cons of any location?

 

The portion of the i-pipe right before the rear axle is a popular spot due to the available space.

 

^ best place imo.

 

That's where mine is.

 

I've seen (and I plan to put mine) them put in spot right before the pipe enters the muffler.

Right on the 90degree bend after the axle.

Perfect spot as far as I can see - the sound is coming from the back of the car and the exhaust gases are still exiting the rear.

 

Mine too. Only mines not an electric. I only use mine for the track. Takes 1 min. to take the plate off.

 

Mine's at the same place, manual though. Before the headers/new motor, I used to have it open all the time, but now its a good bit louder, so an electric one is coming soon. I hate having to uncap/cap it.

 

same place here. some might have ground clearance problems if its anywhere else and most shops wont put ot before the cat if you have emissions in your area.