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BYPASSING PRE-CATS


VIVEK
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I am not understanding, why not just plug the O2 sensors in the new test pipes, it looks like there is a bung for them........

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How about Larini? I got them to build me sports cats with sensors for my primary cats and they run perfect, actually they run excellent.

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  • 2 weeks later...

Update:

SP Engineering could not guarantee the test pipes they were sending would fit yet they said all sales would be final so I obviously chose to not go w/ them either (last thing I want is a $900 pair of hollow tubes that I have no use for). I ended up having the factory cats rebuilt using a free flowing ceramic material--so far so good, car supposedly runs cool and is more responsive. I'll let you know after I put some heavy miles on it. It cost me $1000 for the whole job--not too bad in my opinion. No issues with check engine lights...btw here is one of the few sources for 02 simulators if anyone is still trying to find them:

 

http://www.o2simulator.com/index.php?main_...19637afab7b74bf

 

These are becoming increasingly hard to find over the past year as regulations have cracked down big time on their sales.

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Get Larini to build them for you with the plug in for sensors. I got mine ceramic coated and I dont get any error message whatsoever. Good power gain. 200cel versus 600cel(stock)

Murci_Primary_Sports_Cats_2_wm.jpg

Murci_Primary_Sports_Cats_upright_wm.jpg

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