Originally Posted by Jbrew

You can use the factory y but it's a biitch to weld up on the 4x4 because it reduces to 2.25 at the bend and the metal is stretched. I used at first, but went with a mandrel bend later.

A 2.5 Y is perfect for the engine power and torque. The 3" Y's are called offroad pipes. that translates running WFO ALL the time as it only helps way up into the rpms. It's for the offraod racing trucks. With a 3' you'll need tune. With the right tune you can run just about anything. Put it this way, you can run open headers and gain horsepower everywhere. The only thing stopping that is the tune.

Originally Posted by Cmanjr

ahh okay. what about the 2wd factory Y, isn't it a little different than the 4x4 one?

Originally Posted by Jbrew

I know you a heck of a lot more room down there lol.

Originally Posted by Cmanjr

does the GEM require any type of PCM signal or reading in order to function correctly, or is it completely standalone, meaning it can run without the factory PCM and wiring in place? I'm talking non-PATS.

same thing with the key ignition system in the column, is it able to be used without factory PCM wiring? meaning it can be rewired to control a different PCM and work as it should?

Originally Posted by Jbrew

Me ? I have no idea what your talking about lol.

Originally Posted by Cmanjr

I'm just talking in general to all the guys who usually hang out in the thread, not you specifically haha

Originally Posted by ZebraFord

https://cincinnati.craigslist.org/pts/5650047355.html Is this worth it??

Originally Posted by jferg92

the whole car or just the engine?