[04BlackTitanLE]

Right now i've got the stock exhaust manifolds with the catalysts drilled/knocked out and have some magnaflow cats installed in my b pipes with the nismo "cat" back true dual exhaust with dual magnaflow mufflers since the nismo muffler welds cracked bad. So with my SAS the b pipe magnaflow cats are going to be in the way when I get a bigger front driveshaft, since theirs so much room right in front of the mufflers can I just install the cats before the mufflers and extend the O2 sensor harness or would there be any adverse effects to having the cats so far back?

Questions, comments, ideas are welcome.

 

[04BlackTitanLE]

That pretty much answers my question, I just didn't know if I could have the cats so far downstream. Maybe ill just delete them again completely lol.

 

[04BlackTitanLE]

Do you have cats at all on your truck? I've heard spark plug defoulers with the ends drilled out will fool the computer, i had an oxygen sensor simulator last year before i put cats back in and it worked but didnt, it kept the light off but my ready codes for the oxygen sensor and cat wouldnt go ready. Any insight on that??

 

[04BlackTitanLE]

Lol that happened to me last year, right after i left the smog shop the light came on, but it was just a freak coincidence because it was actually the heater element in one of my front A/F sensors that went bad, which actually screw my mpgs too because the sensor wasn't warming up enough to get an accurate reading.

 

[04BlackTitanLE]

No the monitors ran I guess just the simulator wouldn't do the right sequence that the computer wanted to see from the rear sensors, but it must have seen enough to not trip the light, I drove it like that for probably 800 miles with no light but with 2 not readys as well.