gutted cat

[Kal-El]

ok i gutted my cat a couple of day ago and i told my friend he ask if i put a pipe through it i said no i ask why and he said that be loseing a little bit of power cuse i dont got a strait pipe going through it and i did notice that i lost some power so what he saying is true?

[Jtownrook99firebird]

yes most likely~the air is gonna bang around in thR b4 it gets out.... still prolly have more flow than w/a cat but... I gutted mine and ran a pipe through~it's def. the best way.

[articacid]

will it cause some restriction? yes. but very very very minimal. the stock 2 1/4 piping is more of a restriction than anything else. you say that you noticed you lost some power, but actually you didnt. becuz you freed up the flow that power shifted up a little more. it is not worth the time taking it apart and putting straight pipe in. you will not notice any gains.

[Kal-El]

my ses light comes on but my sim is bad so i have to buy a new on does having my ses light on will that to slow me down

[foff667]

it shouldnt...as long as its just the rear o2 sensor code...it just tells the computer that your cat is f'd

[1DangerousV6]

hmm..my o2 sensor there must be f*cked then..i've had mine gutten and sleeved (no sims) for like 2 years now and have never gotten a code from it..for these guys without tuning software..is there a way to gut the cat and not have an SES light come on without having to buy a sim?..some sort of free mod?..if thats all that o2 does than it would save people some $$$ [img]smile.gif[/img]

[Kal-El]

1DangerousV6
what do u meen by sleeved the cat????

[Kal-El]

i was think instead of a cat i want to put a dyno max bullent muffler in where the cat was. will i lose any performance by doing this? thanks

[Jtownrook99firebird]

instead of a cat~no; instead of a straight pipe~yes.

[articacid]

there is no way to garuntee that the ses light wont come on. some cars will set it, others wont. there is no free mod.

a high flow cat and straight pipe will yeild about the same gains. its not worth not having a cat. any time you free up flow your going to gain, not lose performance.

[Kal-El]

but putting a bullent muffler where the cat was i wont loss performess cuse i was going to do bullent muffler 3" with 3" pipeing to a flowmaster i just dont want to put a strate pipe cause it will sound like crap so let if this is a good set up

[articacid]

theres nothing wrong with that setup. it should sound ok. all of the ones i heard with out a cat had more rasp.

is there a reason you dont want a cat? for 50 bucks you can geta highflow cat and be legal and still have just as much flow.

[Kal-El]

well ether way if i had a high flow or not i would still need a o2 sim but im think of get one but dont know but i do which high flow is the best and wont clog up right away

[articacid]

i have a carsound cat. never had a problem with it. alot of people go with carsound or catco.