Haven't dyno'd my car. I'm just running a modified version of the custom tune that comes with the X. Bamachips developed the tune for the kit.
I think the best numbers I saw posted for a HiPo with 2.8 were around 300/300. I don't race or anything. I just like having the X and driving the car.
Talk to the O.G. X guys like Rygen, Afixer, Torchvert and others. They know all the ins and outs of the X.
Call Dave at Explorer Express and talk to him about the X too. He's a really really good guy and can answer all your questions.
I got my X on a group buy that saved me something like $400.
They're going for $4.4k right now.
http://www.explorerexpress.com/xchar...ner-p-820.html
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2007 Satin Silver V6 / Explorer Express X-Charger #67 - HiPo 2.8
MSD, JBA, FRPP GTA duals, Zabteck, J&M, Steeda, Tokico d-spec, H&R SS, Eibach, Shaftmasters, 8.8, t-lok, 3.73, OE Wheels Cobra R 18x9/10, Nitto 555 255/285