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4 o2 sensors 1990-1994

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Old 05-06-04, 08:53 PM   #1
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Default 4 o2 sensors 1990-1994

why are there 4? i want to remove my 2 cats and put in hi flow cats (aka resanators) in for some more much needed juice but will i throw a code? or check engine light due to the sensors
i dunno where it is but i saw pics of a sc400 from club lexus w/ custom test pipes made anyone know his name/link for his pics.
thank you

*i due indeed have dual cat backs but they start prob 5 or so inches behind the cats*
5w30 m1 full syn, clear bumpers,2.25 dual mani.back 14" res.x2 w/ ghl mufflers with Xpipe, bfi intake/res. removed, cross drilled/slotted rotors, 20% tint all win, GS 5 spoke rims 225/50F 245/50/16R , t.b. and i. m. coolant bypass, Electric fan, egr delete, daizen ft. control arm bushings, red /clear tails, hella horns, breather, H.O. foglights, trac fuse pulled

"Aerodynamics are for people who don't now how to make horsepower."-Enzo Ferari
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1990, cat, lexus, location, o2, sensors

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