Best Exhaust and Cold Air intake?

[D-max06]

I did not know that, killerbee. I was told that the duramax intakes are highly restrictive. Not true? I agree with you though. Why take the chance on battling codes. How much horse power do you gain from a cold air intake? If any at all.

I am for sure going to get the 4" turbo back stainless. Probably a MBRP brand. Where can I get the blocker plate and the fingers stick? Are they sold anywhere?

What are some other things I can do to get some more horse power and torque. Just some small things that don't that would make the truck more efficient?

[deeretracks]

Originally Posted by D-max06

I was told that the duramax intakes are highly restrictive. Not true? I agree with you though. Why take the chance on battling codes. How much horse power do you gain from a cold air intake? If any at all.

You wont gain any hp from the intake. Keep the stock intake and do the Kennedy air box Mod and get a good filter.

[D-max06]

We have just rented a 2008 672D or a 670D John Deere Maintainer just like the one you have, and I have been running it for the last two weeks. I love it. It's set up so nice inside and runs so smooth. So much power for the size. Feels stronger than the Case 845.

I was wondering what else I could do to get alittle more reaction out of the pedal?

[helistructor]

In my opinion, which this is just an observation. I did notice a slight drop in EGTs with a Volant air box, about 100 degrees F. Just an observation. I think the biggest fact of the drop was from the better air filter. I'd say stick with the stock box, and put a K&N air filter in it and call it good. I haven't gotten any codes from the Volant, and my dad has a K&N in his 03 LB7 and hasn't had any trouble either.
I think unless you're running big horsepower, the airbox isn't worth the price. But the filter is.

[Killerbee]

Originally Posted by D-max06

I did not know that, killerbee. I was told that the duramax intakes are highly restrictive. Not true?

This year vehicle has very little resistance built into it.

Earlier models are a different story.