EGT difference between cat and muffler delete and 4inch turbo back exhaust???

[crewcabchris]

Has anyone noticed any difference in egt's after a muff and cat delete? And if you did the delete then did a 4 inch exhaust, what was the difference in egts between the two? Thanks!

[jesilvas]

I haven't, but probably not much. I think it comes with a 4" DP to begin with. Then 3.5" the rest of the way.

[smokersteve]

trucks under 450 hp, not much for egt difference. There is a sound difference. The biggest is price difference.

A 4" turbo back, the DP tubing will get surrounding components hotter than the stock system.


I chose to get the delete pipes because I can easily put my cat back, price, and for the large drop in EGT's.

[Dave]

Did this exact swap in march.

You will not notice any difference in EGTs going from stock with a muffler and cat delete to a 4 inch exhaust on an 05 up truck. They come with a 3.5 inch downpipe stock. Same as most aftermarket exhausts

You will notice a sound difference thats it.

Now in 03-04 trucks you will notice a minor difference. The factory downpipe is bent better on the newer trucks