08-14-2012, 10:50 PM
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#1
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Join Date: Aug 2012
Location: Yuma, Az
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Join Date: Aug 2012
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Delete CAT or replace?
New to me 93 4runner with over 300k on the clock. From looking at the cat, it looks original or at lease OE replacement. In the event it is clogged, would I be better off replacing or deleting? I know its ethical to replace it but Im curious of I would see any gains from deleting.
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08-14-2012, 10:54 PM
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#2
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Join Date: Mar 2012
Location: Washington
Posts: 482
Real Name: Matthew
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Join Date: Mar 2012
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The system is fairly primitive so a deleted cat isn't going to do much. Honestly replace it. It's the right thing to do anyways. You can ignore me but i'm just saying man.
__________________
"Should have taken the intake off!" -My Dad
"Ruby" 1997 4Runner 3.4L, 4x4, 5-speed, 244,xxx miles, Factory e-locker, Toytec Ultimate Lift, 4xInnovations Front bumper, 285x75x16 Goodyear Duratracs, many mods to come
"Roxy" 1994 4Runner 3.0L, 4x4, 5-speed, 208,xxx miles, 2" OME lift, 31x10.50x15 BFG A/T's, Brush Guard, --TOTALED--
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08-14-2012, 11:10 PM
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#3
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Join Date: Aug 2012
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I hear ya. Im not trying to do the wrong thing, just curious about the outcome. Is there someplace to get a stock replacement at a good price? Cheapest I've found is around $90.
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08-14-2012, 11:13 PM
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#4
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Moderator
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Join Date: Apr 2008
Location: Fountain, CO
Age: 42
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Moderator
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I deleted mine instead of replacing it. Vehicles in general are a small footprint on the pollution so I'm not worried about it. I would suggest to delete it unless you are worried about the legality of it.
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08-14-2012, 11:17 PM
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#5
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Join Date: Jul 2012
Location: Long Island NY
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Quote:
Originally Posted by Azwelder
New to me 93 4runner with over 300k on the clock. From looking at the cat, it looks original or at lease OE replacement. In the event it is clogged, would I be better off replacing or deleting? I know its ethical to replace it but Im curious of I would see any gains from deleting.
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Deleting the cat would only give you a small gain of a few hp 7-10, OE replacement is good or if you really want to to feel better for the person driving behind you and some hp gains pick up a high flow cat.
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08-14-2012, 11:59 PM
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#6
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Join Date: Feb 2011
Location: Rio Rancho, NM
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Join Date: Feb 2011
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I deleted my cat about a year ago when the old one started rattling. I have not noticed any performance gains or MPG difference.
The only thing I noticed was the exhaust especially under load is a little louder and the exhaust coming out of the pipe definitely has a stronger odor than with the cat.
Mark
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08-15-2012, 06:37 AM
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#7
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Senior Member
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Join Date: Dec 2011
Location: Lancaster, OH
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Just for the record, this topic has been asked numerous times, and I'm sure could be found with a search. Anyway, just go with a high-flow cat and get the best of all worlds--better flow, cleaner air, and it's legal. By the way, $90 is a very reasonable price for a cat--they can easily cost a few hundred.
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Former owner of four Runners: three 2nd Gens and one 1st Gen. After a long layoff, I'm back in another hardcore crawler 2nd Gen. 
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08-15-2012, 07:01 AM
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#8
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Elite Member
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Join Date: Feb 2010
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Elite Member
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Quote:
Originally Posted by Kalva
gain of a few hp 7-10,
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lolwhut
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08-15-2012, 10:07 AM
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#9
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Banned
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Join Date: Jan 2012
Location: San Antonio, TX
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Banned
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Quote:
Originally Posted by KidVermicious
lolwhut
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I deleted mine a few years ago, I actually got about 40 HP, that and my T4R.org sticker, I'm pushin 550 to the crank 
Seriously, as long as you don't get a ticket dont worry about just deleting it.
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08-15-2012, 11:18 AM
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#10
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Member
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Join Date: Aug 2012
Location: Yuma, Az
Posts: 67
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Member
Join Date: Aug 2012
Location: Yuma, Az
Posts: 67
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No emissions in Yuma, Az but Im sure this isnt the last place the USMC has for me to live before I get out.
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