possible to delete a cat converter on my buick riv?

[graygoose]

Its it possible to do a mod with my cat so I can get more hp?

1996 buick riv s/c

[96riviera18]

like install a high-flo cat? it wont help that much(you may not feel a difference in driving) but every little bit helps. you would be better off investing in a larger downpipe with the high flo cat and making the T split into a Y.(making all the pipes .5" or .75" larger all the way is a good idea too.) dont forget if you do a lot of exhaust mods you will lose low end torque at the expense of upper end hp.

[graygoose]

Oh really? well I heard people who just do a cat delete...I know its illegal but id do it if I knew how

[96riviera18]

its just as it sounds, cat delete. completely removing the cat from the car and replacing it with a pipe. you could try to cut it out and MIG weld a pipe in yourself but if your not a good welder then you could have leaks and thats not a good thing for a daily driver (you might not wake up at a long stop light). as long as your state doent have inspections then your fine.

[plathegame]

if you have an ob2 car you may set a catylist code if you take off the converter.. you may also screw up the back pressure

[96riviera18]

you'll need to get an 02 emulator to stop the code from setting and with the 3.4" pulley you will have plenty of back pressure to spare.

[graygoose]

what is back pressure exactly is that like torque?