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You can get an adjustable boost elbow for the turbo that allows you to make more boost without the wastegate opening... This is the one I ordered for my early 04 Edge Boost Elbow for 94-04 Dodge Trucks
A boost elbow is a brass fitting that that replaces the original wastegate elbow and allows "adjustment" of the wastegate for a "higher" boost level. It bleeds off some of the original boost signal and fools the wastegate into opening later than OEM spec. I think my buddy is running about 30lbs of boost after installing his. Usually there is an allen adjustment on the elbow that you can adjust in and out to bleed more air around the wastegate so it opens later and allows you to boost more.
It is adjustable.. usually an allen screw you adjust on the elbow itself that changes the amount of boost signal your wastegate receives so it thinks you are creating less boost than you are.. which is where the boost fooler comes in for your computer. And I definately recommend a boost gauge.
From what I understand the Big Head wastegate has a heavier spring mostly so it doesn't open prematurely like the stock one can. It might create a little more boost also but the elbow or hose clamp actually restricts the amount of air making it to the wastegate so it thinks you are not creating as much boost as you actually are. The pressure isn't all making it to the wastegate to cause it to open. Do both and you might actually make a little more boost than one by itself..
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