Installing 4" diesel exhaust on my 1990 Silverado K2500

Here is a parts list and links to mostly Amazon but some from Summit Racing. I ordered mine from Summit and linked the exact parts I used. Amazon doesn't sell Summit Racing brand parts so I also linked comparable parts from Amazon. If you buy from the Amazon links, I will get a small kickback. In 2019, thousands of clicks have added up to about $29 so it's not going to break me if you don't buy from these links, I've just added them for your convenience.
Stainless 4" Vibrant exhaust flanges: https://amzn.to/2ZNMEvo
Gaskets for 4" flanges: https://amzn.to/2QoeNGh
45 degree 3" mandrel bend:
Summit https://www.summitracing.com/parts/sum-623043/overview/
Amazon https://amzn.to/39Bo45k
90 3"degree mandrel bend:
Summit https://www.summitracing.com/parts/sum-623046
Amazon https://amzn.to/2FmYEKK
Collector Reducer 3" to 3":
Summit https://www.summitracing.com/parts/sum-g4752
Amazon https://amzn.to/2ZQJhDI
Flowmaster 3 into 4 Y pipe: https://amzn.to/2sDo1FG
Diamond Eye Performance 4" exhaust system with muffler delete: https://amzn.to/2QP9Bdx
4" stick of 3" aluminized exhaust pipe: https://amzn.to/2sB9pqh

Follow along as I build a Y pipe for my truck and adapt it to a 4" single exhaust system from Diamond Eye Performance. I'm an oddball, I know. Most guys go with dual exhaust on pickups. I can achieve better exhaust scavenging with single. This truck is loud now. It would be louder with dual exhaust. Think of it like a speaker. 2 speakers are louder than one. But I'm not out to build the loudest truck that I can. I am looking for max performance. Single 3" exhaust will only support 370-380hp before it starts to choke the flow. I had single 3" but the stock tailpipe bends were crush bent so it was actually smaller. This is a mandrel bent 4" single system with no muffler. The y pipe is mandrel 3" with a flowmaster 3 into 4 y pipe.

Thanks for checking out the progress on my old beater pickup.

Видео Installing 4" diesel exhaust on my 1990 Silverado K2500 канала Eric Ernst