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Hi John. So I noticed some mentions of this in Don's turbo thread that the stock exhaust is fine up to 300hp. I am budgeting for upgrades and looking for your opinion from what you've been seeing with tunes thus far. Are most intakes / headers / exhausts tricking the ecu into creating more power, to where your tune will give the same gains without them by optimizing the tune directly? That is, like your header test, are we likely to see gains from intakes, exhaust etc disappear once we have your tune in place? I've noticed too that intakes showing gains tend to be tricking the ecu into running slightly more lean. Is it breathing fine already for what we're doing here? Not sure how much additional testing you've done with this but don't want to spend the $ on certain upgrades if there will likely be minimal further gains on top of your tune. If so I'll keep tucking away for FI. Hope that makes sense, on my phone and hard to read what I've typed.
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