Garage7RP

iTrader: (1)

Cool! Show us some video and sound of the exhaust.

toxictv

Will do! Tonight or tomorrow

LiCelsior

iTrader: (32)

since u deleted the cats...did u need o2 simulators or theres no code being thrown?

toxictv

According to a previous poster, pre-96 ls400's don't have sensors in the cats. So..no check engine lights here. Just cut the cats off and I'm good so far

LiCelsior

iTrader: (32)

thats good...u didnt remove any thing else though right? no resonators or mufflers removed?

toxictv

Nope. Just the three cats. Two bolted to the manifolds and a third in the center.

LiCelsior

iTrader: (32)

i think that center one is more of a resonator than a cat...ive deleted that and the 2 resonators...running straight pipe true dual exhaust into 2 magnaflow mufflers....next week im probably gonna chop off the cats and throw in a magnaflow muffler as a resonator.

Garage7RP

iTrader: (1)

Let me hear your current set-up Li...

LiCelsior

iTrader: (32)

ish is MAD raspy lol...hopefully the muffler takes care of that.

also i have a horrible exhaust leak at the manifold.

http://www.youtube.com/watch?v=GbWIATrPdco

im sorry for thread jackin and whorin my car

Garage7RP

iTrader: (1)

I think it sounds like that because of the exhaust leak.

LiCelsior

iTrader: (32)

probably, i wouldnt doubt it.....well im gonna hopefulyl get it fixed soon..its getting worse and worse.

toxictv

http://www.youtube.com/watch?v=4liuXvebRuU

pearl93'ls

Ok I would like to do this as well when I get my car back tomorrow. I am in North Ga (squeal like a pig) and we aint got no ermissions laws up yunder. Sounds very nice and I like the idea of free flowing exhaust..I have asked a few mech about it and they all dont wanna do it tho. Gonna try my fav muffler shop this week. If I had a lift we could do it at work. I got torches and welders on staff!

TulsaDave

I recently purchased a 95 LS400. Ran perfectly for about 2K. My CEL light came one and I began having the same issues as the original post (missing, jerking, etc). I smelled the cats, decided to run straight pipe. That didn't fix it. I decided to do a basic tune up on it, plugs, wires, air filter. It worked great for about a month, then the same original problem, only worse. Now, if I give any more throttle than a tiny bit, the car acts like it wants to stall and will not accelerate and it is almost impossible to go up a hill unless I shift into low and romp on it. The check engine light is on and the TRAC OFF light is flashing. Autozone would not give me the code number, only told me that it was the O2. Replacing the O2 would not help, right? Because the CATS are gone now. IDK. This is my first Lexus (changed from BMW, finally) and I have no idea where to go next. Any help would be very appreciated. Thanks.

Mari86

How i can find, that cat are OK? I have UCF 20 II year1998. I buy it 2months ago and last owner told me, that cat are away. But no check light and i can see cat. How i can find, that factory cats are gutted?

Thanks