Originally Posted by
ben1970
Grizz is right,shorten your LSN as he described.I did my gen4 7port and it tunes real easy and stays consistent all day.
I took your advice Grizz and have ordered a Gen5.5 5port and 2072 pipe combo from MM.Luckily I know what I am in for with breakin after breaking in the 7pt (now where`s that heat gun?

Will let you know how it goes.
Nice one Ben. You will find the Gen 5.5 a little easier to break in, as they have eased the initial pinch a little on the 5.5 motors. Bet your glad to hear that

Just go through the same break in routine though

Yep that shorter LSN makes it easier to tune for most people. I reckon I have got better performance from both my motors since I changed (probably because their tuned properly now !!). Economy doesn't seem to be affected at all either. Enjoy that 5 Port - you will love the bottom end punch