I put on a TRENZ POLISHED ALUMINUM BILLET GRILL about a week ago and I noticed my both my coolant and trans temp go up slightly, more so on the coolant temp.
I pulled the grill off yesterday and sure enough, the temps went back down again.
Has anyone else noticed this?
I wonder of it causes any thing to break down faster in the engine.

In any engine, higher coolant temps = higher oil tempature which in turn, has a dominoe effect on just about everything. Shortens oil life, transmission life, and ultimately engine life. I wouldn't put that grill back on.

I have the Trenz and I haven't noticed any change in temps...

my its ok and I have the z :machinegu