Hezsus
Mr. Truck
yeah, i've never used cats myself....not required to keep on 5+yr old vehicles here. Only thing I've noticed the cats do, other than provide a bit of backpressure, is the tend to even out the air flow a bit....kindof like running a pulsating air jet thru an air filter....the felt pulse after filter is softer and less direct feeling. So I'd almost lean to say it smooths out the crackle/pop a little. May just be my hearing messing with me though
Totally agree, gutted cats even seem to even the pulses, we gutted the cat on our old ford 7.3 diesel and you cant feel a pulse out the tailpipe, it even sounds like a constant tone coming out. hard to describe but pretty cool. I put in my muffler and just ran like 2ft of pipe out the back and it seems to make a pretty good diference in sound, quieter but better tone... just wish i would have put it in the same spot so i could have my tail pipes run straight out the back.. gonna have to get me some s bends.