Anyone know if the bends on the piper 2.5" system maintain 2.5" or if they are smaller diameter i.e. the bends are made on a pipe bender and so the diameter of the pipe on the bends is less than the actual pipe 2.5" diameter?

 

Hopefully someone may have noticed when fitting a piper system.

 

Thanks

From photos the diameter on the bends is slightly smaller but not by much, maybe 5% or so I would imagine. Its not bad at all compared to cheap chineseium boost pipes where the pipe is almost half the diameter at a bend