Headers and O2 Sensors
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 837
Likes: 2
From: Derry NH
Headers and O2 Sensors
Which longtube eliminate rear O2s and which keep them? Obviously I am talking about the complete kits with H/X pipe. I understand that those that bolt to stock or RT pipe have more options. I am looking to keep them but I understand they can be tuned out.
Drifting
Joined: Oct 2003
Posts: 1,540
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From: bloomfield nj
they all use all 4 now.at one time the lgm's used only 2.they now use all 4. with high flow cats or no cats you tend to get 420/430[cat efficency faults].that's why most get the rears tuned out or get simulators.be it lgm,kooks,dynamaxx you won't go wrong.if your o2's hae realitively low mileage on them you shouldn't have a problem,but if they are aged,they may throw the light[check engine]on.
Burning Brakes
Joined: Sep 2004
Posts: 1,056
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From: Havelock, NC ( NJ Resident )
Originally Posted by dpd
they all use all 4 now.at one time the lgm's used only 2.they now use all 4. with high flow cats or no cats you tend to get 420/430[cat efficency faults].that's why most get the rears tuned out or get simulators.be it lgm,kooks,dynamaxx you won't go wrong.if your o2's hae realitively low mileage on them you shouldn't have a problem,but if they are aged,they may throw the light[check engine]on.
great answer
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Originally Posted by dpd
they all use all 4 now.at one time the lgm's used only 2.they now use all 4. with high flow cats or no cats you tend to get 420/430[cat efficency faults].that's why most get the rears tuned out or get simulators.be it lgm,kooks,dynamaxx you won't go wrong.if your o2's hae realitively low mileage on them you shouldn't have a problem,but if they are aged,they may throw the light[check engine]on.
6 months and 5000 mi on LG Pro LTs with cats and all 4 O2 sensors, no codes (at least relating to the exhaust system.)
