GM Maf allows you to flow more air and they are a lot less restricting. Gets a lot of shit out from in front of the turbo. Technically they are "more" accurate due to the fact that they can be moved to right before the throttle body so you are seeing the exact amount of air flowing into the intake manifold.
He has a GM 3 bar MAP sensor, there for a GM Maf will be easy to setup in DSMLink. It is almost impossible to set it up right without a MAP sensor. It can be done but thats the PITA way. Due to having to swap the stock mas in and out of the car to check settings.
I would go with the GM Maf and Translator.
Depending on how ported your manifold and o2 housing are, you wont see much of an improvement switching to an Evo mani.
You dont need a TT.
Lowering springs are up to you, depending on how the stock springs are for your liking.
J-pipe is pretty important if you have a hacked up one. If it doesnt leak then I wouldnt worry about it. But I'd definately test it to make sure.
V.C. elim is a waste of money also. Find a stock one for $15 online somewhere and have someone weld it together. Done. Also, what is the reason you are dynoing? If it is only to tune your car, find a buddy and go tune on the street. Nothing will change as far as your settings. You have everything a Dyno has. You have a wideband, tuning program, and you will actually get better intake temp's if you tune your car on the street. More of a better tune. Also, to think that it's not only going to cost you the $160 for the V.C.E. but then you have to pay for the dyno time. Waste of money if you ask me.
Only time I would ever use a dyno again is if I switch to AEM with dual fuel rails. Thats when it gets tricky to get the fuel maps correct. Brent Rau doesnt use a dyno, Shepherd doesnt use a dyno, as a matter of fact, Shep still screws around on the street when tuning. Think about that.
