The Magnaflows look nice...I believe that there's another company that starts with an "S" that also makes high-flow cats...could it be Spintech possibly?

The cats that came with my StainlessWorks are nice and compact, not sure what company they're made by though. Maybe their website would have some info or you could give me a call and ask what brand of cats they use for the 03 and up Silverado LT and catted y-pipe system.

 

random technology is another...they're here in GA...good reputation among their customers but more pricey than the magnaflow's...the magnaflow's are the way to go if you are going to run cats...with their flowrate...and price...I don't believe anything compares...

 

daniel the 3" cats that moregrip had were only 8" from end to end if i remember right so those are the ones you want for the room you have...pm grippy for the p#'s

 

thanks alot Bud8

 

all of that info is in the thread that I kinked in my first post...pm me if you would like the info on the website selling them for $89.50ea
this is a link to the complete .pdf file with sizes, part #'s and illustrations:
http://www.magnaflow.com/richard/NEW...LIC%20CATS.pdf

 

was there any change in tone with these cats???
just curious as to how they will make the exhaust sound diffrent

 

gotta be quieter than straight piping it, which is what I did...

 

can you get away with 1 cat?

 

I have these cats, 2.5" in/out. My exhaust might have gotten a little louder, not tremdously though. The cats are supposed to be great, flow 590 cfm, super compact (8"sounds about right), and metallic which can withstand higher exhaust temps. Here are a few pics of mine in a custom 2.5" y-pipe. The pic kind of sucks.

 

I don't know if it would be EPA approved, being altered from the original manufacturer's design, but you could certainly place one after an off road y-pipe and before the muffler...I don't think there would be any install issues...