Will the RT Cat Convertor show any real gains? If so low mid or high end gains? Any added sound? All opinions welcome. Thanks

 

search, lots of threads on this

no real gains or noise, but good to finish off a complete exaust system.

 

I agree

 

if you need a cat, get one. or if your just crazy like me, get a test pipe or gut your stock one. no gains in an RT cat.

 

No gains whatsoever.

I had my R/T cat in then i gutted it. Gutted / non-gutted R/T cat made no power that i was able to notice.

 

IMO extremely overpriced, get a carsound cat or high flow cat from summit racing if you really want a "performance" cat, gaines will be very minimal high end.........

 

highflow cat = no hp gain + a lot more rice noise on the streets

 

it helps keep you emissions legal...that's why i got it...no performance gains...

 

I think it depends on the vehicle as well. I picked up a decent amount of power going to the 3" Random Tech cat in my '85 Monte SS over the stock replacement Catco 2.5". Of course, we're talking about my home-built V8 that's making around 270 flywheel hp (based on 3600 lbs, and 15.0 @ 93mph quarter mile pass). She really should be in the 14s, but I have to figure out a way to launch it without spinning the tires.

A full cat will also help to build torque, which is what these cars really need. A friend of mine dynoed his '95 Impala SS with stock dual cats, and then with test-pipes in place of the cats. His car made the same HP, but lost about 5-10 ft/lbs of torque throughout the RPM range.

SSeeya-
Steve Ragusa - North Jersey
www.bowtiepower.com
'00 Maxima SE and a resto-modified '85 Monte Carlo SS