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Yes and no. the Hx402 will bolt up but you have to have a down pipe adapter or make a custom down pipe. I have one on my truck and love it. the truck runs way cooler and pulls great. the install will take the better part of a day but you will never regret it.

I have two questions. First what is the stock stall speed on the 4L80e behind a 96 6.5? and second what is the best stall speed for the truck? From what I have learned/read the best stall speed is right before max torque. For the 6.5 that would me a stall of 1750 would be best? My truck seems to...

It sounds like you two have been having fun sense the GTG. I hope all goes well for you both. Let me know if there is anything I can do to help. jhornsby3 if you need anything from Utah I can bring it up for ya. And Paul Let me know if you need help on the truck down here.

And I have pictures on my profile of the HX40II install that I did. I also use the ecm to control the waste-gate like the stock system.

the boost fooler you can Make one or Kennedy sells them. I plan on doing a ecm upgrade in the future so I did not want to buy one from Kennedy. They are easy to make and will cost about 30-40 dollars. The site that I followed was...

The resistor is one way to do it but it does not work well. the best way is with at Potentiometer. They are $3 at radio shack. I have my HX40 set a about 18 and it works great. I am looking forward to having the money to get a new ecm but right now the truck drive fine. with the new ecm I am...

If you don't have a aftermarket ecm the truck will defuel and go into limp mode. To keep this from happening you have to fool the ecm. It is not hard to do but takes some time.

Do you have a Chip in the truck? If not you will have the same issues that I ran into. I had to make a boost fouler to keep the ecm from defueling.

If you want to come but not drive. You can ride with me. I will be in jerome @ 1am sat. Let me know if you would like a ride.

I am planing on coming up to the dyno. I will be leaving Friday night at 6:00 pm from Utah wants to come let me no. I will be running my 6.5 on the dyno. As far as I know it will be the first 6.5 with the HX40II to have a dyno sheet.

I have liked my HX 40II. works great around town.

yep. i made a boost fooler. it works good.

I have the vacuum control set at 16ish. the can is the one that came with the HX40. I cut it open removed the spring and used higb temp silicone adhesive to hold the rod to tbe piece inside. then welded the can back together. it is working great for now. i have a gmx wastegate actuator that i am...

here is the setup that i did for my hx40. I am using the stock vacuum to control it.

with out a inter-cooler 15psi. but that is more cfm than the gm x turbos had. my truck with the gm-5 turbo would not hold more than 10 psi when working. sure it would hit 15 but not stay there. with the hx-400wii it will hold anything i want. but if you go over 15 air intake temps get high. At...

i thought that the p400 was the number of the optimizer?

Ok so if I wire in the pot it should take 15 psi. The hx40 wastegate won't for any lower than 15. I will try. The pot

So the pot would work better?

I thought that so I put the sensor in the air box.

I put the resistor in series. No codes just defuel. The resistor did help. I have a 20k resistor now that I will try in the morn.