Engine/Transmission (1998.5 - 2002) Exhaust Questions

[KIseminger]

Have a couple questions.



Has anyone out there seen a really big difference between 4" & 5" exhaust? I get the impression that there won't be a huge difference unless I have a lot of HP.



Has anyone that lives in states, such as Colorado, that uses Mag-chloride for a de-icer seen a difference in durability between aluminized and stainless exhaust?

 

[KIseminger]

Anyone... ... . Bueller?

 

[EricBu12]

unless you are going to have BIG power like over 500 hp or so, you don't need it. Might make your EGT's a little lower but not enough to justify. .



I have the rip rook 4" with an allied truck muffler (straight through design) and it does good for my 400 hp. (eng).



on mine, a 5" would most likely lower EGT by a couple of hundred or so but not worth the cost.....

 

[WadePatton]

SS is a waste of money where I live.



I'm running 5" from Big Exhaust. It was as cheap as a 4" system. Should have bought their muffler too, but got a big truck muff under there.



Joe D has said many times that 4" is sufficient up to the low to mid 500's. It probably is. I like when folks notice that my 5" "tip" is NOT a tip.



When I do the stacks on the green truck I'll run 4" all the way to the verticle part. Easier to work with.



I recommend a 4" and straight thru muff.



Want to drop EGT's?--get a higher flowing turbo. Works most every time.

 

[KIseminger]

That's what I thought .....

 

[Mark Craig]

KIseminger,



I agree with the guys we sell 4 inch 30 to 1 over 5 inch.



Mark @ DPPI