RallyBoy

iTrader: (1)

i am getting ready to delete the cats on my 97 ss. should i purchase the o2 sims or get the o2's tuned out? what are the advantages and the disadvantages of each?

kmgsix08

iTrader: (17)

im interested in knowing also

RallyBoy

iTrader: (1)

what would tuning out the o2's and a.i.r. cost?

socal

iTrader: (1)

cost maybe $100 advantage's the sim's can go bad and you would have to spend more money it happed to a friend of mine

sprayed_z

iTrader: (2)

Just get a pcmforless tune or madz28 or similar. 170 bux and well worth it. They retune for 50 bux.

www.pcmforless.com
www.madz28.com

infinitebird

iTrader: (11)

Tune because you can also get the other advantages of tuning at the same time.

PCMFORLESS

Also, the EPA has come down on places like caspers electronics and others and they are no longer able to sell the simulators. Plus, as mentioned before, there are extra benefits that can be picked up thru a tune.

LS1BlackBird99

iTrader: (202)

https://ls1tech.com/forums/parts-wanted/706763-wtb-top-dollar-catalytic-converters.html

koolaid_kid

iTrader: (21)

Sell the parts and get a little money, let them make a lot more money. It is a business, and should be viewed as such.
Keeping the old parts has it benefits, since you can bring it back to stock if you need to, for a lot less money.
Tuning is always the best (max power), but more expensive.
Sims can fail, as they are parts. But they can also be replaced, because they are just parts.
Your choice.

2000Firehawk

iTrader: (248)

https://ls1tech.com/forums/showthread.php?t=712994
Yes… I also buy all factory cats...
WTB - $$$$ for catalytic converters , cats

I pay $145 per pair or $70 each for factory LS1 LT1 LS2 LS6 GTO GM cats.
I pay by check or paypal, your choice.
Send your payment information with your cats, when you send them.
I pay within 24 hrs of the same day that I receive your cats.

Send cats to:
Dave McElrath
2942 Crosby Ave
Pittsburgh , PA 15216

No gutted or internally broken cats. Broken studs, bad flanges a-ok.
You can cut them out of the piping if you want.
The more you cut, the cheaper it is to ship. I just need the cats.
Fedx ground is cheapest.

Or , if you cut away all the piping , they will fit into a USPS ‘flat-rate” box &
Cost you only $8.95 from anywhere to me. Free “flat-rate” boxes at your post-office.

Check out my Trader Ratings at the top of the LS1Tech.com page.
I'm #3 on the list with 203 trades & a 100% rating...

You can also send me all other factory cats, & I will pay you top dollar, for your cats... I can only price non LS1 cats when received, as there are 1,000s of different factory cats made.

RallyBoy

iTrader: (1)

my cats are internally broken, so i need to get them off. when the o2's are tuned out, do they just turn them off or actually tune the vehicle on the dyno to run without the rear o2 sensors?

cruzin94

iTrader: (2)

why dont u just gut ur cats and keep ur o2's i wouldnt suggest a tune until you have more mods done cause it pretty worthless just to tune out o2's

RallyBoy

iTrader: (1)

when the rear o2's are tuned out will it show ready when i go for an inspection? i have heard people say that rear o2's are only there to check the operation of the cats and have nothing to do with fuel trims. if the cats are not working efficeintly then i am sure the computer senses it and adjusts the fuel trim. can someone please verify this?

infinitebird

iTrader: (11)

A tune is not worthless ever. You can pick up at least 10rwhp on a bone stock car, plus other advantages like running cooler, etc.