M30 with a 325i exhaust

[1987E30project]

What are the disanvantages of using a M20B25 stock exhaust system?

[RickSloan]

well if you are using e32 downpipes then it just about bolts right together afaik

other then that its a bit to restrictive but is fine, just you will lose a bit of power

[1987E30project]

Losing power!! We can't have that.

[1987E30project]

What about using an exhaust system from an M50?