Is it better for performance to remove the muffler of a recently gone turbo'd vehicle?
right now, the exhaust system is as of follows: T1R testpipe, T1R b-pipe, T1r 50s muffler...

it's a small t25 a/r 0.63 turbo fitted in the Honda Fit pushing 5.7psi

 

I wouldnt bother, unless its a high hp drag car on a drag strip you are better of keeping your muffler. It will only make your car too loud for daily driving. Also on that small turbo with that low boost level it wouldnt help any enough to be worth it.