Want to talk exhaust - Thoughts?
No opinion on the LCE. So I will tell you what I've done, and give you my unconventional opinion.
Doug Thorley tri-y header. 2.25" to cat. 2.25" to muffler. 2" tailpipe out of the muffler.
If I wasn't fixing an existing system I would run 2" out the cat to the tailpipe, and that is only because the collector on the header is 2.5". When I first installed the exhaust on my truck I bought into 2.25" mantra. Now, personally, I think 2.25" exhaust systems on a street driven, or off-roaded, 22re is silly. Google the subject. You will get a myriad of theories, calculations, and opinions. So, I'm going to give you one webpage with a calculator that says 2" pipe can handle 164hp:
Exhaust Size Calculator. I defy you to make that kind of power out of a streetable 22re.
Now Google the concept of engine scavenging. The bottom line, when it comes to exhaust, bigger is not always better. Especially with a truck that runs low rpm on the rocks. I have noticed very little difference on my truck, and the difference has been for the better. I think the truck idles better, and it's much easier to drive on the rocks. It's minor, so it could be placebo.
