Catalytic Converters...2-way,3-way,+air?

[Haziness8]

hey, i was looking at dynomax's high flow converters and you have several options from size and types. does anyone know the difference from a 2 or 3-way converter or one with +AIR? also, is a shorter cat restrict less? check it out.
http://www.a-1performance.com/super_converter/super_converters.htm

im thinking of welding up a dual exhaust; 2 high flow cats into an X-pipe and out to 2 dynomax Ultra-Flo Welded Mufflers? i think this would be the most optimum exhuast setup? what do you think?

 

[ExplorerDMB]

High flow cats don't do a thing for performance with our Explorers -- but anyway, AIR is a system used awhile back to oxidize emissions (a system to help clean up the atmosphere). Obviously, our Explorers don't have it. But with 2-way and 3-way I dunno what that means. Call up Dynomax, they'll tell you. But many people on here have tried the high flow cats and have not recieved any positive feedback.

-Drew

EDIT: found this definition for ya: Air Injection Reactor (AIR) - Air pump injects air into exhaust manifold which burns unburned portion of exhaust fumes.

 

[Haziness8]

EDIT: found this definition for ya: Air Injection Reactor (AIR) - Air pump injects air into exhaust manifold which burns unburned portion of exhaust fumes.

would the AIR do anything in increasing or decreasing horses? since a high flow converter dont do much, would a shorter body one do anything better?

 

[Haziness8]

bump

 

[ExplorerDMB]

The only thing the AIR system does is oxidize the emissions. AIR is purely for emissions, not HP gains or anything.

-Drew

 

[Turdle]

I think there would be parasitic loss from air pump

 

[Runnin'OnEmpty]

The 3-ways clean up the NOx in the exhaust, and our Explorers do use 3-ways. A longer cat will clean the exhaust better than a shorter one, but I doubt if there's any difference in backpressure.

im thinking of welding up a dual exhaust; 2 high flow cats into an X-pipe and out to 2 dynomax Ultra-Flo Welded Mufflers? i think this would be the most optimum exhuast setup? what do you think?

I think this would be an excellent exhaust setup, and probably sound great. Biggest problem would be where to route the pipes.....?

 

[Haziness8]

im ganna keep the exhaust pipes pointing outwards but tucked under the rear door areas. i dont want exhaust really visual. i want it hidden, im actualy now considering Hushpower mufflers now, im very very curious how that would sound, but dynomax mufflers definatly have more flow. idk cant decide