I live in a state and county that requires NO emmisions testing, is it worth it to gut it. The motor is a 383.

 

yes it's worth it. you could either gut the cat or you cant just cut the cat out and put on off road pipe in. you can either buy it or just make one. you can getsome exhaust from your local muffler place and have each end expanded , slip it on then weld it or clamp it. cost about $10 thats will flow slitly better than a hollow cat.

 

but the hollowed out cat would be better than what it has right now (a Cat)??? I will do a "test pipe" eventually.

 

forget a test pipe take the cat out and put a cutout in its place.

 

operated manually? like a Y correct?

 

Manual one is best, I would think remote operated ones would leak after awhile but I am not certain.
It would just let you uncork the exhaust whenever you wanted.

 

I will just bust out all the catalyst and gut it.

 

that will work to.

 

gutting it? How is the best way to gut it, rebar, I did one with a piece of rebar.

 

yes if you have yor sir pump still hooked up there will be a poping noise through the exhaust when yuo rev it up. .

 

I dont want the popping sound, how much gain in power will it yeild???

 

i would gut but i would also remove your air pump no need for it since you won't have a cat anymore.

 

5-10 hp.

 

will it still pop?

 

with the air pump gone it won't pop.