i just installed a magnaflow hi flow cat 2 weeks ago on my ride i got 4 hp a gain
There are no differences. High flow catalytic converters are not really high flow; the catalytic converters you have on your vehicle are as high flow as you need them to be. A "high" flow converter will either be of a larger diameter, or the inside is made in such a way that there is less restriction to exhaust flow.
Depending on the application there are free flow catalytic converters available. They are not street legal in all states (California for one).
As far as the environment is concerned, yes. Catalytic converters are very important in regulating the amount of pollution your vehicle emits. As far as vehicle performance, removing a catalytic converter could increase horsepower and exhaust flow. Removing the converter can (and does on most) cause the computer to over-correct for the improper oxygen sensor readings. This over-correction usually causes a reduction in power, economy, and running performance. It is also highly illegal.
I do not believe that catalytic converters (as used in exhaust systems) have a heat shield. They are simply porous blocks through which the exhaust gasses flow.
IN a word-YES, the computer monitors flow in and out the engine removing the cat will screw it up.
We have a 1993 Ford Bronco with 2 catalytic converters. Had one of the 2 replaced over a year and a half ago when we failed emissions. We passed with flying colors. So I say, it can be done.
it does but only on the dino there is not a massive gain or feel but converters restict flow engines need to breathe
high flow cats are fake. the cats you have on your truck are as high as you need them. you start messing with your catalatic converters you will have a check engine light and all sort of nightmares.
Does increasing the diameter of your exhaust pipe leading from the engine increase exhaust flow and therefore lessen engine burden causing an increase in horsepower? The answer for that is yes, but is negligible. Maybe 3-15 horsepower at best.
There is no reason to do this. Modern catalytic converters do not restrict your exhaust flow. All you will gain by breaking it out is a check engine light coming on that will never go away. If your check engine light is already on for a catalytic converter problem removing the honeycomb will not fix it.
Excess fuel can super-heat the converter causing the converter to meltdown. The excess fuel can be the result of many possible engine malfunctions. The converter meltdown would result in blocked exhaust flow resulting in power loss. At this point the converters are junk. Do not just replace the converters without correcting the cause.
If you have the SS, then there should be 4. There will be one on each pipe coming from the headers. There will be two more on the pipes after the catalytic converters. If you have the non SS version then there are only 2. There will be one in the pipe after the cross over pipe that brings exhaust flow from the driver's side header to the passenger side. The second one will be after the catalytic converter.