This is not a grid heater delete. Although you could get rid of yours if you want. This works like porting the intake side of your head and lowers restrictions.

[QUOTE=jkidd;525453]Get one of these instead. more air to cylinders 1,5&6 check out the last picture you will see the casting on the motor that is a huge restriction. I have them for 98-02 and a different model for 03-07:tu:

Attachment 44916




Hey J Kidd, PM me the cost of one of these bad boys! :tu:

And andy, I run mine with the heater

Have you seen the bottom of the intake that is on the side of the head? I dont know how this tunnel ram thing would get anymore air to 1,5 and 6? Its not the top of the intake that is restricting air, its the bottom of the intake the ports block half of the cylinder ports on 1 and 6.

I guess by having more clearance on top, there is more volume in the intake, allowing more air to flow. The Tunnel Ram doesn't have all that "X" and square pattern all the way down causing turbulence either. Never held one, but thats my guess from the pictures.

So slighty more air. The ports are still blocked.....

Thats the point, more air! :rocking:

The Tunnel Ram is NOT a replacement for porting the head. It is but one of the easier/cheaper (<$300.) things that will increase the balance/flow to the engine without pulling the head and milling off the intake to properly address the ports (>$2000.)
Most guys running decent boost have also blown the paper gasket under the stock cast plenum cover, so when you have to pull that corroded restrictive flat plate off, may as well put something on that not only looks much better, but will work better too! And unlike some bombs that may raise EGTs or produce less power under the curve, the Tunnel Ram has been shown to broaden the curve, and thats something you can enjoy EVERY time you drive your truck!:tu:

getting HP is cheap (fuel), keeping it cool and driveable is expensive. Tunnel Ram intake plate is a good bang for the buck.:rocking:

I would vote for this for the price you cant beat it I have hours and hours into building one for my truck now that I am done with it I would have been better off buying one from Jacob here PM me a price as well Jacob got another rig to run one on :argh:

Sure thing Brice