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Old Apr 12, 2012 | 05:40 PM
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Default Help with selecting o2 sensors

So i finally hooked my car up to EFI live apparently i have some slow switching o2's upfront Which should be the reason for my terrible gas mileage.

Anyways, Read about Bosch's being shitty? Then i see alot of people recommending Bosch 13111's? I heard alot of good things about AC delco's. Ill be switching to Longtubes in a couple months so dont want to buy some all over again, heard about o2 extensions not being the best route?

Any input would be greatly appreciated! Thanks!
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Old Apr 12, 2012 | 07:33 PM
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I installed some Denso's on my current car(with no extensions), which I am told are the same sensors that AC Delco repackages as their own. I have had no probelm with them with LT's/ORY.

On my 98 M6 TA, and 99 A4 Firehawk I installed the Bosch 13111's, and also had no issues.
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Old Apr 12, 2012 | 08:51 PM
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Originally Posted by Coy
I installed some Denso's on my current car(with no extensions), which I am told are the same sensors that AC Delco repackages as their own. I have had no probelm with them with LT's/ORY.

On my 98 M6 TA, and 99 A4 Firehawk I installed the Bosch 13111's, and also had no issues.
Do you have the part number for the denso's you used? There the Corvette rears im guessing since you didn't need extensions? Thanks for replying.
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Old Apr 12, 2012 | 09:36 PM
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i am running the bosch corvette rears and i haven't had any issues yet.
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Old Apr 12, 2012 | 11:45 PM
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Originally Posted by adamantium
Do you have the part number for the denso's you used? There the Corvette rears im guessing since you didn't need extensions? Thanks for replying.
I used the same denso sensors as him with great results. The part number you need for long tubes is 234-4617. They are $49.97 a piece on RockAuto and come with a 1yr warranty.
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Old Apr 13, 2012 | 12:31 AM
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Originally Posted by RebelExtrm02
I used the same denso sensors as him with great results. The part number you need for long tubes is 234-4617. They are $49.97 a piece on RockAuto and come with a 1yr warranty.
Thanks i will be ordering them tomorrow, was just making sure. Thanks again guys.
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Old Apr 13, 2012 | 09:57 AM
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Sorry for not including the part number. Glad somebody could help you out.
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Old Apr 13, 2012 | 10:04 AM
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I'd just run the Bosch vette rear O2's, thats what I have now & they work great. Think they were like $65 each at O'Rielly's.
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Old Apr 13, 2012 | 10:51 AM
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Originally Posted by adamantium
Thanks i will be ordering them tomorrow, was just making sure. Thanks again guys.
Those densos also come with more than enough anti seize in the box to install them, so you don't have to worry about buying any.
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Old Apr 13, 2012 | 12:03 PM
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Originally Posted by BIG_MIKE2005
I'd just run the Bosch vette rear O2's, thats what I have now & they work great. Think they were like $65 each at O'Rielly's.
Yeah on rock auto the denso's were 49.xx each. I had a buddy who worked for autozone and always told me to stay away from bosch stuff, ive seen alot of hit or miss threads on here about bosch dont really want to take the risk. Thanks though.

Originally Posted by RebelExtrm02
Those densos also come with more than enough anti seize in the box to install them, so you don't have to worry about buying any.
That's a major plus. Thanks.
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Old Apr 13, 2012 | 06:06 PM
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bosch o2 suck dont use them never used denso on a lsx engine i always use delco in them myself they are about 20 bucks each higher but in my opinion they work much better then any others i have tried
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Old Apr 13, 2012 | 06:16 PM
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Originally Posted by dodson55
bosch o2 suck dont use them never used denso on a lsx engine i always use delco in them myself they are about 20 bucks each higher but in my opinion they work much better then any others i have tried
The new AC Delco's for the fbody are Denso sensors in an AC Delco box now.
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Old Apr 16, 2012 | 11:52 AM
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For anyone searching, i ordered my denso's off rock auto for 109shipped for both with priority mail. Got here fast as hell. I would definitely recommend them.

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Old Apr 16, 2012 | 12:16 PM
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Originally Posted by RebelExtrm02
The new AC Delco's for the fbody are Denso sensors in an AC Delco box now.
thats good info to know
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