My EJK has arrived probably cost me twice as much as you guy's pay in the states, anyway fitting it tomorrow and I've decided to fit a larger outlet to the exhaust, bought a bend on eBay a nice stainless one and very pleased with it even has the makers name etched on it

Awesome.  Let us know how it goes.  I put an EJK on mine a little over a week ago and love how it handles the fuel control.  My Z used to be "cold natured" on start up.  Now it is all better. 

Fitted my EJK and it helped the flat spot I had at low rpm, the guy's at Dobeck suggested I disconnect the O2 sensors which I did (this allows adjustment of the green band) I then added some fuel in the green and my flat spot has disappeared

Thats good to know but i plan on installing a A/F gauge because otherwise its all guessing.  With an A/f gauge you can tune the mix to exactly what you want all through the fuel curve.

Thats good to know but i plan on installing a A/F gauge because otherwise its all guessing.  With an A/f gauge you can tune the mix to exactly what you want all through the fuel curve.

Which gauge are you planning using? I've been considering getting one as well as I plan on picking up the EJK here this month.

I have used the Innovate LC-2 in the past and REALLY liked it.  It was very accurate as I tested it against a VERY high dollar unit a friend had and they were spot on together.  I will add that buying a $175 A/F gauge is not for everyone or really what i would call a good long term useful item.  Pretty much once you do your upgrade and tune for them then it is just a flashing light/ number that you wont mess with again.  For me though Im setting up to race next season and I will likely be chasing those extra few HP so I will use it off and on to make sure im running in the sweet spot.

First long drive last night, really pleased with how she drives now, the flat spot has gone she seems  to run cooler and much smoother.

Next job is to find out what size the thread is on the stock O2 sensors, so I can remove them, I'm going to fit a blanking plug to one and the other will be used for the new wide band O2 sensor that will come with the AR gauge.

AR gauge will be used for more precise tuning of the EJK controller.

It is not enough to have the ejk controller. We must continue changing without a complete kit

Put a PC5 with autotune and you will be spot on every time:)

Ok then my question is if I spent $ 1650 on EJK, muffler, and air filter. How much faster is it? that is. I know that it is softer, that it lights better, that it has a pairwise acelet. That is my doubt because if this gained 2 or 3 hp does not justify in my case the cost that has. Sorry for the translation but I use a translator.

U$S1650 dolars