E36 owners: Ever consider installing the M50 manifold without a tune?

[T.Dot_E30]

And just to show that there is an improvement with a tune, this is a quote from bf.c with dyno before and after an m50 manifold.

Notice the drop in torque you don't see above.

Originally Posted by sfdrifts

Red curve is with the m50, I barely notice the drop in the 3k range when driving and she really opens up after 4k now, very happy with the m50 swap.