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flex pipe???

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    flex pipe???

    i have a 90 ls integra, i just installed a cat back exhaust system when i put it all togeather i have about a 3 or 4 inch gap inbetween the downpipe and the cat. i looked it up in my chiltons manual and there is suppose to be a small piece of pipe there. im not sure if its a flex pipe or what but i definatley need that part. please help!! im tired of getting tickets for no exhaust!

    #2
    Originally posted by ///Nick View Post
    i have a 90 ls integra, i just installed a cat back exhaust system when i put it all togeather i have about a 3 or 4 inch gap inbetween the downpipe and the cat. i looked it up in my chiltons manual and there is suppose to be a small piece of pipe there. im not sure if its a flex pipe or what but i definatley need that part. please help!! im tired of getting tickets for no exhaust!
    did u install a different type of headers? or did u get an exhaust meant for ur da?

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      #3
      u need the 92-93 extension piece or just go to a muffler shop and tell them to make u a test pipe, extra pipe to close the slack, or extend your current pipe/cat...

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        #4
        yea cuz the 1992+ headers whether they are stock or aftermarket, are longer and have the o2 sensor bung hole near the end of the headers. if u got the 90-91 headers with a 92-93 cat back, then you'd have about 3" of gap.

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          #5
          wierd. because my o2 sensor is on the downpipe. and i have about a 3 or 4 inch gap. im pretty sure its a flex pipe. how much would a muffler shop like walts charge me? id rather fix it myself but that part is always gone when i look at da's at the junk yard.

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            #6
            Originally posted by ///Nick View Post
            wierd. because my o2 sensor is on the downpipe. and i have about a 3 or 4 inch gap. im pretty sure its a flex pipe. how much would a muffler shop like walts charge me? id rather fix it myself but that part is always gone when i look at da's at the junk yard.
            the flexpipe is usually part of either the cat........... or the downpipe section. i'm not 100%. but instead of asking us how much a muffler shop would charge..... why don't u just wait and call on monday and find out from an actual muffler shop? u can always call more than 1 to compare quotes.

            ok so we are clear. u have a 92+ header....... and that means u probably got a mismatching catback. or u have a very short cat.

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              #7
              correct. my header doesnt have a port for an o2 sensor so its probably out of a 92. however my chilton has a diagram and it shows the small flex pipe that bolts inbetween the cat and downpipe. however the gsr has the flex part on the downpipe itself. so if i had the b17 gsr downpipe that would work exept that would be hard to get a hold of. and cost alot. i think it would help if i had some more pics. before when i got the car it had ebay 421's and the cut the exhasut and welded it back to get it to fit. i had to replace it because the header was cracked.

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                #8
                Originally posted by Squeezethis View Post
                yea cuz the 1992+ headers whether they are stock or aftermarket, are longer and have the o2 sensor bung hole near the end of the headers. if u got the 90-91 headers with a 92-93 cat back, then you'd have about 3" of gap.
                Actually Jeff, the 92-93 header is SHORTER than the 90-91. I had a 92-93 gsr parts car for awhile and compared all the exhaust parts between my 91 GS and the GSR. Every part is a different length:

                http://www.g2ic.com/forums/showthread.php?t=46463

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                  #9
                  i guess the part im looking for is called a middle pipe. its a small pipe with flanges on both ends. i had to put new gaskets in the top of the downpipe because they were toast and leaked really bad. i hope when this is all done i wont have so many exhaust leaks.

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                    #10
                    Originally posted by Colin View Post
                    Actually Jeff, the 92-93 header is SHORTER than the 90-91. I had a 92-93 gsr parts car for awhile and compared all the exhaust parts between my 91 GS and the GSR. Every part is a different length:

                    http://www.g2ic.com/forums/showthread.php?t=46463
                    i just read what i posted...... i get dyslexic at times. my bad. yea i should've known this cuz i put a 92-93 greddy 4-2-1 which was a tiny bit shorter. my bad nick, i was azz backwards. THANKS COLIN!!!!!!!!!!!!

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                      #11
                      its all good. i posted a wtb add on craigslist and this one guy said he had the part. i guess its just a small pipe with flanges on both ends. i guess its called the "exhaust middle pipe" i dont know if i put the right gaskets in the top of my downpipe though, they stick out a tiny bit. is that good? i also put some high heat copper silicone on there too. it looks good, i just dont want it to leak again. i used to have a huge leak where the downpipe connects to the header. im hoping this will fix it.

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                        #12
                        i went to a few shops and they charged any where from 80 bucks to 150. that part is SOOOO hard to get! i went to car quest, shucks, autozone, like 5 auto wrecking yards. yea, if you have this piece, hang on to it because its golden!

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                          #13
                          Originally posted by ///Nick View Post
                          i went to a few shops and they charged any where from 80 bucks to 150. that part is SOOOO hard to get! i went to car quest, shucks, autozone, like 5 auto wrecking yards. yea, if you have this piece, hang on to it because its golden!
                          lol no its not. its just that u went and mixmatched things without making sure that they'd work without modification.

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                            #14
                            yea, i bought my header and downpipe for 20 bucks from my friend. i think the downpipe is smaller. im still confused though.

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                              #15
                              so basically i need the header and downpipe off an 90 or 91 da integra.

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                                #16
                                Originally posted by ///nick View Post
                                so basically i need the header and downpipe off an 90 or 91 da integra.
                                bingo!

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                                  #17
                                  in that case, im just going to buy aftermarket 421 header and downpipe. no need to buy stock ones if i have a 2.5 inch cat back. will i still need an extension piece?

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