[Dropped_99]

I need a new catalytic converter cuz mines busted, so Whats better, a single inlet and outlet catalytic converter, or a single inlet and a dual outlet catalytic converter, right now i have a y-pipe that splits after the catalytic converter, so would it be better to just get a dual outlet catalytic converter and start the split there, or should i get the single outlet cat bolt it to the y-pipe, which method is better and would give more power?
here's a sketch of what the hell i am talking about

 

[Dropped_99]

this is the single inlet and out let

 

[Dropped_99]

And this is the single inlet/dual outlet

 

[DogP]

I would probably go w/ the dual out cat... just because the cat would already be manufactured for the split instead of having two restrictions, and I would think the dual cat would be a less restrictive than a restrictive cat then restrictions of a split.

 

[Dropped_99]

did u notice a difference when u put in your hi flow cat?

 

[TurboS10Xtreme]

Since you have a 4cyl you would probably get more torque out of running just a single pipe all the way back. At least thats what test have shown when running inline engines.
If you want dual exhaust go with the dual out cat.:thumbup:

 

[DogP]

I don't know... I put the new exhaust and cat on at the same time, but I did notice a difference w/ both.

DogP

 

[DropindaS-Mini]

thread moved to exhaust

moved

 

[HuTcH]

dual outlet would be pointless... get a single in single out catgo high flow cat and you will be good... the dual would not help you at all...

 

[Photo]

The dual inlet CAT is a great way to go if your having a custom bigger Y-pipe made at a muffler shop. With a setup like that you can get the motor exhaust to really flow, and it will help the motor mods out alot.