I bought my F4 with a Two Brothers high mount exhaust. I'm looking to throw the passenger pegs back on right side of the bike.

Anyone have experience in this?
Can I just get a mid-pipe for this exhaust to lower it's position?
Or am i gunna have to replace the whole slip on?

 

You need a new midpipe and exhaust hanger. An exhaust shop could make them up for you or possibly buy them from the manufacturer of the pipe.

I have a bolt on ZX9 pipe on mine and an exhaust shop made a midpipe for $70AUD and it looks awesome.