Anyone new removed their cat lately with success? Real-world results since... any difference good/bad in mileage, torque, hp, etc.

 

no idea... all i know is its a federal offence.... huge fines if u get caught....

 

Well let's all assume it's for "off-road" use only...

 

1200 fine ir ur state requires smog. but from wat i heard its very raspy

 

i have done taken my cat out i did it the sme time as i did my manifold dont no how much hp i have gained but the pic up is great and sounds awesome just that little prob of been done by the police. but sod them. can wait to get her back down the strip to see the diff

 

well without the cat you can also get a lot of back firing here and there... might even get some "flame" action... i have a cat but i dont have any resonators in the mid pipe... and i have the SRT4 rear section on there... and occassionally ill get a back fire... specially right before oil changes, sometimes i get a little flame or two out of them... but its barely noticable...

 

never had any flames het but i have a big back box with twin exit i think if it was just the one muffler it would because it back fires like hell

 

I had the cat out for a while and it was awesome, very loud. It would back fire once in a while and sometimes spit out flames. I ran that setup for like a year, not so good on gas mileage.

 

is that because you had your foot on the floor all thae time bacuse thats my prob right now

 

The only way you'll see any gains by removing the cat. converter is if you replace it with a long tube header...

Any other "perceived" power gains are simply from the increased volume of the exhaust, backfiring, etc...