Hello everyone. I'm new to the forum and not the most knowledgable on mechanical aspects of trucks. I'm trying to learn more about it. Which brings me to my question at hand. What are negative effects of straight pipes on a truck? I have a 2001 dodge ram, off road edition and I recently removed the muffler from my exhaust. Now my truck is running a straight pipe with the catalytic converter. does anyone know of any negative effects this might have on my trucks mechanical performance? Thanks!

 

I recall reading that mufflers are designed to give a specific amount of back pressure to the engine which made the engine perform at the most efficient level. Maybe search the web for the muffler theory to get specific answers. Exhaust headers have specific lengths to ensure the max performance.

 

I've done quite a bit of research on the "back pressure" argument and I never found anything definitive, especially in the year of your vehicle.

I've been told that on GMs the switch to EFI Vortec engines in 96' required back pressure from the muffler, but then I was also told that it is complete garbage and someone made that up to sell more stock mufflers.

Personally, on a 15 year old vehicle, I don't think it is going to make any noticeable difference whatsoever. I wouldn't worry.

 

Googled "back pressure for Dodge" and found many links, but this one seems to fit your situation: back pressure? - DODGE RAM FORUM - Ram Forums and Owners Club ...
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