I couldn't be happier with mine. Level 4 4L60E

They are painted a gloss black and look awesome too!

 

hmmm I wasnt aware of that fact. Thanks!!... where would he tie into then? I'd like to know just for general knowledge.

 

Not exactly sure. the only vacuum line is for the Fuel Pressure Reg, which of course doesnt even exist if he has a returnless fuel system.

So i guess for a Vac-Modded trans you would have to open up one of the vacuum taps on the intake manifold.