A friend has a '07 6.7. He was questioning me about blocking a part of his intake manifold off; that recirculates the exhaust back through his engine. He was told that doing this increases his fuel mileage. Is there a kit to do this with or do you have to build something? And if he did this will it void his warranty. Also can he cut off his cat. converter?

 

well this topic has been in question and debated over ever since these motors hit the road. the egr system can be removed will you see a gain in mpg not really and as far as his dpf and nox catylyst if he wants his warranty i would keep it on if not there are companys out there that sell off road only kits hsperformance or badp

 

How is the best way of removing the EGR? Is there a kit?

 

there are egr delete kits out there just search the forum