the Megan mids will fit

I took off my Megan mufflers and put on the stock mufflers...the sound was decent (I needed to quiet down the car since my son was using my car to practice for his license) Since then, I have modified it...
I have this set up currently...I had the stock mufflers modified = larger tips, and larger diameter piping from the muffler inlet to the midpipe connector...the sound is really good. not loud at idle or cruising, no drone...when you step on it...the car opens up -- very similar to what it sounded when I had the Megan mufflers...
here's some pix...I have a video somewhere on my camera but need to upload.
Rear view - you can see the pipe between the muffler and midpipes (2.5" piping all the way to stock mufflers)
Motordyne High Flow Cat Module
Motordyne Ypipe
larger exhaust tips
