Have you replaced a 4" exhaust with a 5"?

[jsimpson]

How do you like it? Did you replace a 4" exhust with the 5"? Does the 5" perform better than 4" Does the 5" give lower EGT's than the 4"?

 

[231jasonS]

Ive done it on a few 2nd gen's. No new one yet, but have seen them. I think 4" is big enough unless your pushing more than 350hp. On my 04. 5 i replaced the muff with a better flowing 4" and it got about 80-100 cooler on the pyro. As far as the performance i think the AFE and T. tube did more than the exhaust. But it def spools faster with the better muffler.