I have got a Peco rear box with a 3.5" rolled tailpipe but instead of making it fit the car i made the car fit the exhaust...
This is a vid of it with the tailpipe glowing a wee tad red hot...
That's the silencer but it was a bit too quiet
So i kind of opened the top up
Then removed this lot
This is what it looks like from the back
Before that i had a bandit 1200s rear can but once i'd slammed the rear end it scraped too much lol...
what have you done to the rear subframe to get that to fit? or do you have a rear beam and coilovers?