Tragedy of the commons.Most emissions equipment creates more pollution than it prevents just through its own process of manufacture. Cats are filled with various rare metals, and it is the production of these metals where the biggest and longest lasting environmental impacts are created. The same goes for almost everything "green." There are already huge junkyards full of dead electric cars that now have been declared environmental wastelands.
Not to mention only one volcano erupts and pushed more CO2 and ash into the atmosphere in two days than most countries do in a year (China notwithstanding.)
If people truly are concerned about their own (miniscule) impact on the planet, they would walk everywhere naked and barefoot.
Yes you can do that, and if I had decided to go dual that's what I would have done, but there are a few down falls. One is cats are expensive and you'd need to buy two. The other issue is the longer it takes for the cat to get to operating temps the longer it takes for it to fully start working. Having two cats you'd be running half as much exhaust though them and it would take them longer to warm up.I’m ignorant in when it comes to exhaust, but could you run no Y-pipe and dual cats?
Yes.I’m ignorant in when it comes to exhaust, but could you run no Y-pipe and dual cats?
First off to all the haters, to each their own. I'm not a tree-hugger by any means but I do appreciate being able to breathe clean air around MY truck. Some facts: 85 K20, 350, Port fuel injection, NV4500.
Currently has Hedman headers, 2-1/2" true dual exhaust out the back thru Flowmaster 50 series mufflers. It looks great and sounds good.
This truck is an off-road and work truck. It doesn't get drag raced and you don't be shifting NV4500's at 6000 rpm. I seriously doubt with all the performance parts it puts out more than 350hp on a good day. I am perfectly satisfied with its performance for how I use it. With all that said, it has a serious drawback that I can no longer stand- The Stinky A** exhaust! And before you say it, it's NOT running rich, I am very educated on the Air/Fuel ratios and their effects on the Carbon Monoxide CO, Nitrogen Oxides NOx, and Hydrocarbon HC. EFI alone does not eliminate these. Sorry they are byproducts of the combustion process.
So what I'm gonna do is retain the headers and hopefully figure out a way to add a Y-Pipe and a 3-way converter somewhat like the factory did. I don't know what that is in a 4wd because my truck has never had it. I also don't like the current 2 1/2" pipe on the passenger side because it snakes under the crossmember and runs parallel with the fuel lines.
My thoughts are to run 2 1/4" pipe for the Y-pipe into a 3 inch single pipe down the drivers side and out behind the d/s rear tire. I am going to invest in a good muffler, Borla most likely.
My biggest concern is getting the Cat close enough to the Y-so that it gets hot enough to fire off and work properly. If that cant happen the whole thing is a moot point. I'm concerned the headers are going to shed heat and contribute to my demise?
Can someone tell me where exactly the factory cat was located? Is anyone out there running headers and cats? I know there is a myriad of aftermarket cats out there but the location and exhaust temp limitations really got me perplexed. I'm not opposed to replacing the headers with ceramic coated ones if that's part of the solution.