If you're asking about Dmax MAP (not MAF), then yes it's a direct fit replacement of stock 1-bar map and it's 3.3-bar map. But I read some idle issues about it and my tuner couldn't get the truck to idle with it. So, I ditched it and went with external old GM style 3-bar map with extension harness from Casper and it's working great. I teed it in the boost line going from the intake to the WG, mounted it to the firewall and kept the stock map to plug in the hole at the back of the intake. I fabricated a bracket plate to hold the stock map in place to make sure it does not come out with boost.

 

Having some issues with stock 4L65E transmission at this power level.

https://www.performancetrucks.net/fo...5e-4wd-515869/

 

Well duh. LOL.