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LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Cats are off. Light is on..

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Old Aug 6, 2018 | 08:57 PM
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Thumbs up Cats are off. Light is on..

On my 2007 LS460, just before I install nitrous, removed all cats, installed new zero BP full stainless Magnaflow exhaust....sounds great. 2.5 tubes. x-pipe. 4 resonators. 2 straight-thru muffs. I tried the "non-fouler" trick to space the downstream O2 sensors back out of the exhaust stream, but that is a no-fly. There's a way to get that light off, who can tell me what it is...? Thanks!
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Old Aug 13, 2018 | 09:42 AM
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Unsure about the CEL w/o a Tune, which we've been trying to get RR-Racing to develop. Have had no luck.

You plan on a 75 or 100 shot? Would Nitrous really be effective with the sluggish transmission and 130mph limitation? I'm in for some pulls showing the speedo!
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Old Aug 13, 2018 | 10:34 AM
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The spacer only works if the cat is still there and is out of the optimal threshold.

Try an o2 simulator. It's basically a resistor that mimics the output at an optimal range, so the car thinks your cat is there and working properly. It completely eliminates the need for a rear o2 sensor.
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Old Aug 13, 2018 | 04:21 PM
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Bikexcoupe,

Now.....you're the expert I'm looking for. I WILL employ that counsel, right away. Thanks. I'll get you some feedback.
Regards,

Douglas F Bost
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Old Aug 13, 2018 | 05:03 PM
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Jasoneo5,

I'm looking at it this way, considering the cost of a turbo kit, or a blower kit....It'll go, or, it'll blow!
regards,
Douglas F Bost
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Old Jan 3, 2019 | 04:29 PM
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Originally Posted by hirollr865
Jasoneo5,

I'm looking at it this way, considering the cost of a turbo kit, or a blower kit....It'll go, or, it'll blow!
regards,
Douglas F Bost
Douglas - you ever get around to installing this? Would love to see a speedo acceleration video!
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Old Jan 3, 2019 | 05:21 PM
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Originally Posted by Jasoneo5
Douglas - you ever get around to installing this? Would love to see a speedo acceleration video!
Jason, we are still piddling with it. The bottle is installed, solenoids are fitted and plumbed, still have purge kit (colors!), switches and gauges to go. BTW, I also have purchased another device (2) to shut the icons off....it's two tiny little cats that go in the O2 sensor ports. $250 but I'm tired of no cruise and TC on, etc.....When it's wrapped up, I'll get you some stills and a video....probably be a few months.
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Old Jan 3, 2019 | 06:12 PM
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Congratulations!! Did the 02 simulators plug in, in place of where the 02 sensor would connect? Mind sharing the part you went with?

Look forward to seeing the results.
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