snorkel intakes

I did it to two 75 series and it did seem to make a difference but never had any specific figures to back the 'seat of the pants' feel up.
If you do decide to do it you need the bottom piece off the existing 'hat' as the snorkel top is smaller than a standard donaldson ram.
That was on the earlier snorkels, the later ones are bigger in diameter so a ram may fit straight on.

I put an Airtec ram air on to my new 76 can not say if it has made any diffrence to economy but it does not get the vibration it use to.