quick question about all the stuff on the pipes

sheepdizildawg · Post by **sheepdizildawg** » Mon Aug 11, 2008 11:44 pm

hey, just removed exhaust. ok so the thing right after the manifold is a catylitic converter.. what about after that. there are the flex pipes.. another big box, some more pipe, another big round thing... more pipe, then my muffler... the first one is a catylitic converter, then what are the next 2 pipes?

mikedudley17 · Post by **mikedudley17** » Tue Aug 12, 2008 2:31 am

resonators. helps keep your exhaust quiet.

sheepdizildawg · Post by **sheepdizildawg** » Tue Aug 12, 2008 5:12 am

well the first one was a cat.. the stuff was all smashed and turned side ways. so i removed it all.. the second one was a cat converter as well.. so i left that one on there.. and the third was a resignator so left that one too. the woo is back!! I am soo happy i can drive my own car again.. i have no clue why it was like that...

daewhorider · Post by **daewhorider** » Tue Aug 12, 2008 6:25 am

Yeah you are going to want to remove the pipe that the second cat is attached to and bang it on the ground so that all the material from your first cat is not blocking the second cat which in turn gives loss of power and possibly a situation in which the backpressure is so high that it breaks your engine.

sheepdizildawg · Post by **sheepdizildawg** » Tue Aug 12, 2008 1:55 pm

yeah i made sure the whole pipe was cleared out

mikedudley17 · Post by **mikedudley17** » Wed Aug 13, 2008 5:42 am

thats a dif. set up than the aveo, i had in this order off the mani: cat. converter-downpipe/flexpipe-resoator-another resonator-muffler.

/end hijack.

sheepdizildawg · Post by **sheepdizildawg** » Wed Aug 13, 2008 5:46 am

oh. yeah. i didnt know i had two cats.. i didnt know the first one was until i took it off of the manifold. thats where it was broken. i have no clue how it got broken there... if anything i thought it would have broken the other one.. this leads me to something else.. the resignator.. i am thinking about removing it.. what you guys think?? i like it loud.. i started the car with only the manifold one. sooo freaking loud. to loud. i was hitting 20 mph in 3rd gear.. almost red line.. no back pressure at all. haha.

daewoomofo · Post by **daewoomofo** » Wed Aug 13, 2008 9:44 am

the aveo is obd2 right? i believe its 2 cats, resonator, muffler. i think every obd2 car has 2 cats, i may be wrong but im pretty sure they have 2.

sheepdizildawg · Post by **sheepdizildawg** » Mon Aug 18, 2008 5:58 am

so i lost a lot of low end torque because i lost some back pressure.. how do i go abouts getting it all back?? will removing the resignator and putting a straight pipe in its place throw some back pressure in there?

daewoomofo · Post by **daewoomofo** » Mon Aug 18, 2008 9:39 am

the more things you take out nad replace with a straight pipe the less back pressure you will have.

sheepdizildawg · Post by **sheepdizildawg** » Mon Aug 18, 2008 8:26 pm

i havnt tooken anything out and replaced it with a pipe, just removed inside of the cat.. i know.. same thing.. but was just noting that..any easy way of getting some back pressure other than spending the money on a new cat?

daewoomofo · Post by **daewoomofo** » Mon Aug 18, 2008 9:54 pm

put in a nother resonator

sheepdizildawg · Post by **sheepdizildawg** » Tue Aug 19, 2008 1:57 am

just took out the resignator and put in a glass pack i had in the garage... quited down the sound and feels like i have my power back =]