SRTKLLR

iTrader: (1)

We installed a Maggie kit on a 2014 Silverado and need some colder than stock plugs. The truck is making 10psi at the moment with a smaller pulley but the stock plugs don't last lomg cause they are too hot for a supercharged application.

Need recomendations on plugs and part numbers.

Thanks

Iam Broke

If stock HR is a 5 like I suspect, go to a non extended tip NGK BR7EF. You don't need a glowing flamethrower sticking out into the combustion chamber at 10 psi on pumpgas.

I run 6's but I'm on E85 at 10 psi and the 7's carbon tracked from being too cold.

turboventura

7's on e85 19lbs, 8's were fine under boost but got nasty with just a few street miles.

SRTKLLR

iTrader: (1)

Those plugs won´t work on the new 2014 trucks because they come with the DI engine. The plugs are longer with more thread.

That is what I need a part numberr for a 7 or at the very least a 6 in cold range.