New cat or headers?

[02firebird]

I already have a borla exhaust and an slp intake and lid, but now I need to decide what's next. Should I go ahead and get a high flow cat, or save up a little more and get headers first?

[enzia35]

Re: New cat or headers?

On a 02 headers have a smaller effect than on earlier years. Cat isn't worth much either.

[Bird_Of_Prey]

Re: New cat or headers?

Headers.

[02firebird]

Re: New cat or headers?

Which one would have more effect on how loud the exhaust is? Because the Borla on its own is very quiet. My guess would be headers?

[97RSSM90]

Re: New cat or headers?

i love 02 manifolds

[WarShrike]

Re: New cat or headers?

Depending on which headers you get, the exhaust leaks could make it louder :)

[techsan23]

Re: New cat or headers?

Which one would have more effect on how loud the exhaust is? Because the Borla on its own is very quiet. My guess would be headers?

The cat would probably increase sound more than the headers, but when you put the headers on your going to have to re-plumb some of the exhaust anyway. I would save yourself a little hassle and just save up for both. The collector on the Y-pipe of the headers should be 3". It makes sense to put a 3" in/out cat on that. Personally I would run 3" all the way. Do you have a 2.5" Borla?

[02firebird]

Re: New cat or headers?

Ya, the Borla is 2.5" all the way back.

[ssms5411]

Re: New cat or headers?

The cat would probably increase sound more than the headers, but when you put the headers on your going to have to re-plumb some of the exhaust anyway. I would save yourself a little hassle and just save up for both. The collector on the Y-pipe of the headers should be 3". It makes sense to put a 3" in/out cat on that. Personally I would run 3" all the way. Do you have a 2.5" Borla?

X2 , do both at the same time.

[crazytrain65]

Re: New cat or headers?

headers, scrap the cat.