[Rippedoff]

I'm trying to replace two of my cats and both flowmaster 40 series. Do I have to buy a obdII after market catalytic converter? I know I need 02 port. How would my car run without obdII?

[6ER THEN I 8ER!]

obdII is an onboard diagnostics system...so you can't remove it

now toward your cat issue...
replacing your cats will be just that...your cats will be replaced...exactly why are you replacing them? Are you throwing a code?

[Rippedoff]

I took my car to three different shops. both my flowmasters when idleing make a bad rattle. at the shop they bump the mufflers to show me they were no good. one cat was reading 600 degrees..the other rattle when they bump it. I was told i need to replace both flowmasters and both cats. I just bought this car and trying to buy the parts to do it cheaper. all the shops want over 600 if they buy parts. I was told by one shop i need obdII with 02 plug cats. Well their expensive lol. so i'm trying to put cats by magnaflow that just have the 02 plug. wondering if that would work and not harm my car. I'm tryng like hell to make my wife stop tripping out. But i want it to be done right but kinda cheaper then the prices i was quoted. the other the im not tryin to wing is the flowmasters 40

[T-Lee. 30]

Flowmaster 42543 - Flowmaster 40 Series Mufflers - Overview - SummitRacing.com pair $118 or Flowmaster 842518 - Flowmaster Super 10 Series Mufflers - Overview - SummitRacing.com pair $118

MagnaFlow 53006 - MagnaFlow Universal Catalytic Converters - Overview - SummitRacing.com pair $134

total $254 then pay to get them welded on.

[laoutlaw01]

Your o2 bungs are not even on your cats. They are in the pipe before and after your cats. Sounds like none of them shops either know what they are doing or they just trying to scam you. The one that's rattling is broke up inside and the one thats 600* is prolly stopped up. Yes they need replacing. It would be way cheaper to find someone on here to sell you there factory h pipe with the cats and all on it. I would sell you mine for $100 plus shipping if you wanna go that route. It was taking off my car at 20,00 miles or so. No rust or dents or scrapes or nothing. Pm me if you want it. That would save you a grip because catalytic converters are high.

[Rippedoff]

rock? I looked at ur link for cats. That cat didnt have 02 sensor plug. wouldnt that put the check engine light on? nor was is obdII tech. I can use a non obdII and not thro a code or make my motor run different?

[T-Lee. 30]

Pypes High Flow Ceramic Catalytic Converter Kit at AmericanMuscle.com - Free Shipping!

these are the cats im running i use to get a code when i didnt have cats but i had these welded on and there is no code now. but months later when i got my car dyno tuned after the blower instal he turned off my rear 02 sensors for whatever reason. but i wasnt getting a code anymore with these cats and the 02s were on at the time.

[Rippedoff]

law01....whats plugged in the secondary cats? My car has four cats and the two fastest to the back have cords plugged in.

[laoutlaw01]

Your car has 2 cats. The ones closet to engine are only resonators. They look like cats but they are not.

[Rippedoff]

rockwell...i thank you for everything. The cheapest i found a shop in pcola florida if o had the parts was 200...Would i better off letting this one shop do it for 625?(parts included)...vs...2 cats at 189 + 2 flowsmasters at 90+200 labor..one shop said 550 without resernators

[Rippedoff]

would my car sound good without the resernators and just two cats?? i had to shops say their 4 cats and one shop say what ur saying law...lol fuck idk now

[laoutlaw01]

Originally Posted by Rippedoff law01....whats plugged in the secondary cats? My car has four cats and the two fastest to the back have cords plugged in.

And the o2 ports are not on the cats themselves,the back ones are about a foot behind the back cats. Unless yours are not factory and someone has nodded it with a setup I'm not familiar with.

[Rippedoff]

yea it has true dual

[T-Lee. 30]

Originally Posted by Rippedoff rockwell...i thank you for everything. The cheapest i found a shop in pcola florida if o had the parts was 200...Would i better off letting this one shop do it for 625?(parts included)...2 cats at 189 + 2 flowsmasters at 90+200 labor

that just sounds expensive to me but i guess the locations vary total I paid cats $189parts $80 instal mufflers $118 for the pair $80 for the instal so that was $467 total. But a few more shops around here charge the prices you listed. just ask them how much they would charge just for labor if you brought in your own parts cats and mufflers. and it will be quite loud with cats and no mufflers but not nearly as loud as no cats and no mufflers.

[Rippedoff]

yea i feel like im getting rippedoff. i just bought this car a week ago.

[laoutlaw01]

Originally Posted by Rippedoff yea it has true dual

All gt's have true duals buddy. There only equalized(connected) at the h pipe.

[6ER THEN I 8ER!]

one thing i've noticed OP is that you're still under the impression that you have o2's connected to the cats...your o2's are in bungs before and after your cats...not on the cats....i hope the shops that told you they are were not the shops you were thinking about getting work done yet

[laoutlaw01]

I think op you need to put a jack under it and take a peak at em yourself,just so you'll have an understanding of what we are trying to get across from you man. I hate to see people get raped at shops .

[Rippedoff]

I jacked up my car today. it has the normal true dual ...no h pipe..(is what i was trying to say) both cats do have a cord/ plugg in the middle of each them.

[Rippedoff]

i contacted the car lot and monday they want me to bring back the car to have it check