chevytruckguy

I was installing my nitrous solenoids and plate last week and noticed there were blocks of foam under plastic intake manilfold in my truck. 06 silverado with a 4.8. Will it hurt anything to remove those blocks, or should I leave them alone? thanks in advance. By the way I also did the throttle body coolant bypass, will I have any issues with that?

thunder550

iTrader: (70)

I'd leave them in there. They keep junk from getting under the intake manifold.

Nick™

iTrader: (2)

agreed, junk also includes water entry is minimized, water getting down to the knock sensors is a primary cause of their failure.

krambo

iTrader: (4)

Amen.

Torque_Wrench

iTrader: (13)

Their primary design was like a noise baffle, GM said. But they do serve a purpose in protecting from debris. But without them it's almost like an Air Gap Manifold but I'd safely say you'd never notice a power gain from removing them, probably a little more blabber at WOT.

chevytruckguy

Thanks for the help.