why wont flowmaster fit?
06-30-2005, 04:42 PM
#1
why wont flowmaster fit?
ok, i just got the 3 inch flowmaster kit, but the cat flange that comes with it is too big the the cat bolts....anybody know what im talking about? Its a 91 Z28 single cat car....the 3 inch pipe wont even fit in between the car bolt stud things...help....the car has no pipes on it, i cant drive to a muffler shop 
06-30-2005, 04:46 PM
#2
06-30-2005, 04:53 PM
#3
i think the cat might be a replacement which is freakin bullsht...now i HAVE to take this to a muffler shop...damnit 
heres what i mean
and NO i dont know how to weld. nor do i own a welder
heres what i mean
and NO i dont know how to weld. nor do i own a welder
06-30-2005, 04:58 PM
#4
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You have the weeney '91-'92 TPI single cat system. The cat-back is for the '86-'90 TPI 3" single cat system.
06-30-2005, 07:02 PM
#7
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Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
that looks like a stock CAT to me.. and it looks like a 2 1/2".. get a 3" cat from Ebay.. get the "carsound 3" universal fit, WITH A.I.R. tube."
carsound is made by Magna flow.. you can pick one up for 59$ plus shipping.
on that note.. whats the diameter of your Y pipe? do you have headers at all?
carsound is made by Magna flow.. you can pick one up for 59$ plus shipping.
on that note.. whats the diameter of your Y pipe? do you have headers at all?
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06-30-2005, 07:04 PM
#8
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Car: 1991 RS
Engine: 5.0
Transmission: 700r4
Take it to an experienced shop and have them install it. Most likely they will put an adapter on the cat and weld it to the I-pipe.
You can also do what killjoy said and get a 3" cat to match the rest of the system.
You can also do what killjoy said and get a 3" cat to match the rest of the system.
Last edited by RS Chris; 06-30-2005 at 07:07 PM.
06-30-2005, 07:10 PM
#9
aw man, this is gonna be more money out of my pocket...damn jegs... I have the stock manifolds on the car...the outlet of the cat is 2.5 inch but i dont think thats the same as the y pipe.
will a new 3 inch cat hook up to the y pipe?
thx for the help so far
will a new 3 inch cat hook up to the y pipe?
thx for the help so far
06-30-2005, 09:40 PM
#10
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Car: 1992 Camaro RS
Engine: 305 L03
Transmission: Borg-Warner WC T-5
No worries bro!
Hey man, don't fret, you've got the right system, you just need to get a 3" cat and have an exhaust shop fit your cat to your stock y-pipe with a reducer. I bought the direct replacement 3" Catco high-flow cat from Summit. I had the exhaust shop weld it to my stock y-pipe with a reducer and then the rest of the system just bolts right up to the 3" Catco. The catalytic is right around $100 from Summit, you should probably replace your stock one now anyway.
06-30-2005, 10:01 PM
#12
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Car: 1991 RS
Engine: 5.0
Transmission: 700r4
If they know what they are doing, YES. I had the same thing done on my RS. Just make sure they don't chop any off the front of the converter in case you decide to add headers later.
06-30-2005, 11:26 PM
#14
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Car: 1991 RS
Engine: 5.0
Transmission: 700r4
Call around. I had the cat. put on for $150 and the cat-back for $100, at different times though. $150 to $200 should be a fair guess.
07-01-2005, 05:40 AM
#15
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally posted by RS Chris
Take it to an experienced shop and have them install it. Most likely they will put an adapter on the cat and weld it to the I-pipe.
Take it to an experienced shop and have them install it. Most likely they will put an adapter on the cat and weld it to the I-pipe.
Getting a new cat, as stated in the later posts, would be a much better idea.
07-01-2005, 09:18 AM
#16
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Originally posted by five7kid
Getting a new cat, as stated in the later posts, would be a much better idea.
Getting a new cat, as stated in the later posts, would be a much better idea.
Yeap, what he said.
It will flow better and give you a better sound too. That is if you get a hi-flow.
Last edited by IROCThe5.7L; 07-01-2005 at 09:21 AM.
07-01-2005, 01:52 PM
#17
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Car: 1992 Camaro RS
Engine: 305 L03
Transmission: Borg-Warner WC T-5
Originally posted by five7kid
Most likely they would chop up the cat back and weld an adapter to it.
Getting a new cat, as stated in the later posts, would be a much better idea.
Most likely they would chop up the cat back and weld an adapter to it.
Getting a new cat, as stated in the later posts, would be a much better idea.
07-01-2005, 04:10 PM
#18
im sick of this damn kit, i gave up and im just paying a dude at midas to make it fit to the stock cat...i dont give a sh*t...im tired of worrying about this and spending more money on it. The guy whos gonna install it said hes done this kit on 3rd gens many times and it might rattle cause the car wasnt meant to have 3 inch pipes on it...does anybody else have the kit and does it rattle?
07-01-2005, 05:07 PM
#19
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Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
have the same kit.. not a single rattle in 3 years.. as long as they dont tuck the damn pipes up too close to the body, you're not going to hear a thing.. the hangers all have rubber bushings.. so what are they supposed rattle on?
07-01-2005, 05:19 PM
#21
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Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
is your car lowered? you shouldnt have any issues back there at all..
im on eibach sportlines.. which are the lowest springs.. my 3" clears fine..
im on eibach sportlines.. which are the lowest springs.. my 3" clears fine..
07-01-2005, 09:24 PM
#23
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Car: 2 1988 GTAs
Engine: 5.0 and 5.7
Transmission: 700R4
Axle/Gears: 3.27 posi's in both
Car is not supposed to have a 3" system? 
3rd gen is a 3rd gen, some had bigger pipes than others but Flowmaster and Dynomax and all the other leading competitors wouldn't sell a crapload of 3" systems if they didn't fit. I wouldn't trust what a guy from Midas says anyways. Flowmaster makes 2 kits for those cars. One for a 2 1/2" cat and one for a 3" cat. Probably should have checked what cat you had before ordering the system. I have the 3" kit on my car and it fits great, but then again Midas didn't put mine on. Only thing that will rattle are the factory heat sheilds if they are loose. If they made sure they were tight before they installed the pipes they wouldn't complain about rattles.
3rd gen is a 3rd gen, some had bigger pipes than others but Flowmaster and Dynomax and all the other leading competitors wouldn't sell a crapload of 3" systems if they didn't fit. I wouldn't trust what a guy from Midas says anyways. Flowmaster makes 2 kits for those cars. One for a 2 1/2" cat and one for a 3" cat. Probably should have checked what cat you had before ordering the system. I have the 3" kit on my car and it fits great, but then again Midas didn't put mine on. Only thing that will rattle are the factory heat sheilds if they are loose. If they made sure they were tight before they installed the pipes they wouldn't complain about rattles.
07-01-2005, 09:30 PM
#24
i thought the kit came with a reducer for the 2.5 inch cat...why else did they say the kit was for a 91...i dont care anymore, i test fitted the kit and it doesnt seem like it will rattle, so im sure it wont. And this guy isnt some looser mechanic so stop judging him....
he said it will most likley rattle if i did it...
he said it will most likley rattle if i did it...
07-04-2005, 04:13 PM
#26
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Car: 2 1988 GTAs
Engine: 5.0 and 5.7
Transmission: 700R4
Axle/Gears: 3.27 posi's in both
If you put a shorter cat on the car, now the intermediate pipe won't be long enough to fit between the cat and muffler so you will still need to have your pipe lengthened. 
07-04-2005, 10:51 PM
#28
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Car: 2 1988 GTAs
Engine: 5.0 and 5.7
Transmission: 700R4
Axle/Gears: 3.27 posi's in both
Then you already knew the answer to your own question. If the pipe is now too short, its obviously not going to bolt up then is it?
07-04-2005, 11:04 PM
#29
im wondering if this http://www.performancepeddler.com/de...CT_ID=MAG94219 would be a good cat... its going to need a reducer, will there be enough room? the pipe b4 the cat is curved and i dont want the reucer mounted on a curve..
help
help
07-04-2005, 11:11 PM
#30
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Car: 2 1988 GTAs
Engine: 5.0 and 5.7
Transmission: 700R4
Axle/Gears: 3.27 posi's in both
Go to a local junkyard and find one with a factory 3" Cat, cut it off, take it to a good exhaust guy and have him install the new cat and exhaust and everything will be ok...
07-05-2005, 10:54 AM
#31
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Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
Dan are you retarded? i gave you the link to the cat you needed.. in the link you just posted.. its the EXACT SAME ONE, same make, same demensions!! but the link you posted cost 15$ more.. AND you have to pay shipping..
whats wrong?
whats wrong?
07-05-2005, 06:50 PM
#32
i dont want to get the wrong sh*t...im not taking a risk of telling the ebay seller to give me one with an air tube...i hate ebay
Last edited by DanTheMan_smlk; 07-05-2005 at 06:53 PM.
07-06-2005, 07:59 PM
#33
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Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
ive bought from that guy 3 times.. ships in 2 days, always sent me what i asked me..
so you're basically wasting 30$ in higher price, shipping and tax.. that sucks
oh well.. do what you want..
did you ever get your exhaust on? or are you waiting for the CAT?
so you're basically wasting 30$ in higher price, shipping and tax.. that sucks
oh well.. do what you want..
did you ever get your exhaust on? or are you waiting for the CAT?
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