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I searched and found some older info ( which of course still applys) but I am looking to see if anyone has had any experience lately putting headers on their 5.4 Expy?
I now have a stock exhaust manafold/cat/y pipe with a 40 series Flowmaster. I removed the stock resonator. I like the sound but want more (who dosent)
I have a couple of questions:
1. Do I replace the stock Cats with Hi flows?
2. Can I use the stock Y pipe or should I replace that while I am at it?
3. Now I know true duals are a tough setup with the fuel tank but what type of muffler ( 1 or 2) and outlet.
4. What brand header
5. How much $$$ installed?
Im not sure you want to replace all of that or the truck is going to be REALLY loud, like mustang loud, is that what you are looking for? I would just do headers, Gibson SS. I think you can find them for about $450. As far as installing them, not sure how much that would be, I was going to give it a shot myself sometime before the summer is over...