so should i go with an external gate? an how would i gate it in the hot pipe? or off the manifold?

 

You really need to research the concept of triple turbos more. I admit I don't fully understand it like I do compounds, but I still have seen a few setups. In a compound setup, you have one quick spooling turbo, and one bigger turbo. This is not the case in triple turbo setups, where all three turbos are often close to the same size. Common triple turbo setups are three HX35's, two HY35's feeding an HX35, two he351's feeding an HX35, and similar setups. It's kind of a poor man's compound setup if you already have three stockish size turbos laying around. A setup like that will support about the same amount of air an HX35/HT3B or HX35/S472 compound setup will. Good reading...

12 Valve Triple HX35 Turbo Setup - Competition Diesel.Com - Bringing The BEST Together

Triple HX35's for towing - Page 2 - Dodge Cummins Diesel Forum

 

so is mine a bad set up

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will this work better on my stock turbo common rail? it has an edge juice with attitude. it will certainly clean up the egts an lag. give me your thoughts