Jump to content
Mopar1973Man.Com LLC
  • Welcome To Mopar1973Man.Com LLC

    We are a privately owned support forum for the Dodge Ram Cummins Diesels. All information is free to read for everyone. To interact or ask questions you must have a subscription plan to enable all other features beyond reading. Please go over to the Subscription Page and pick out a plan that fits you best. At any time you wish to cancel the subscription please go back over to the Subscription Page and hit the Cancel button and your subscription will be stopped. All subscriptions are auto-renewing. 

Exhaust Extractor?


Recommended Posts

I've noticed on many GM diesel trucks a device that I interpret to be some sort of exhaust extractor. It is a section of tubing, approximately 1 1/2 " larger in dia than the tail pipe, welded on to the end of the tail pipe with S-shaped pieces of round bar. It looks like there is a section of the larger tubing that is necked down like a venturi positioned just beyond the end of the tail pipe. I've seen them installed on private vehicles, business vehicles, and even public transportation vehicles. I'm just wondering what the heck it's called, what it's supposed to do, and why don't I see it employed on anything else besides GMs. Inquiring minds want to know!Thanks for your time,Joe in St Louis

Link to comment
Share on other sites

I think you are talking about the difuser on the newer diesels with Diesel particulate filter systems. When it goes through a regen cycle to clean out the DPF the exhaust is super hot and the design pulls in extra air to cool the exiting exhaust gasses for safety reason.

Link to comment
Share on other sites

×
×
  • Create New...