Sorry if this question keeps being asked but the ba2400 is completely discontinued from granatelli as of 5 months ago. (Tried to order one today) so I have no choice but to get the sct ba2600. Latest post I’ve seen about this was in 2011 and I was wondering if a retune will be needed with the 2600. (Currently tuned for ba2400) I read some saying yes and some saying no. Are the two MAFs the same but different material?