Single pipe sizing help for tuned M50

[Aguedae30]

I'm replacing my current setup soon,I'm running euro M50 with 98 octane remap with supersprint headers.

I want to go single pipe for weight reduction and system simplicity,I'm on doubt between 2.5" or 3", my remap was done in a 3" single m50 car running some similar setup as I do,but some say it might be too much for a 210hp engine
any opinions or dyno charts on this?

Help is always welcomed! Thanks in advance!

[MaxBell]

I'm going with dual 2", which equals about 2.75", with a slight restriction due to the nature of dual pipes.

I'd probably go with a 2.5" single though, that's good to about 300 hp I'd think.

[MR 325]

3" is too big. Go with single 2.5" for sure.

[Aguedae30]

3" is too big. Go with single 2.5" for sure.

Will it be enough if I anytime stroke my engine to 250hp aprox?
Thanks for the income

[digger]

Will it be enough if I anytime stroke my engine to 250hp aprox?
Thanks for the income

yep,