99ex with gsr swap... will it pass emissions?? any helpful hints on how it can??

 

just hook up all the smog emeissions that the gsr came with, dont have any codes, get a motor that is your car year or newer. do a tune up and take it to pass emissions at the referee. in cali thats what we have to do

 

Your in TN??? I dont think you have smog. You probably just have to pass emmisions. As long as the engine is running properly you should be fine.

 

I am in TN... they hook up to my computer and the ecu has been changed... will that affect it any?? will the o2 sensors off of a factory civic work on the cat??

 

you will need an OBD2b P72 for your 99 civic.
as long as the CEL is off and you've driven the car for a little while you will be fine.

Thankfully an OBD2 ECU is all you need in pretty much any state other than cali.

 

I do have the p72 ecu hooked up... anybody have a gsr cat and good o2 sensors for sale?? how about ideas on what is the best cat to buy with the dual o2 sensors?? direct fit or weld on universal??

 

any cat should work... i got a b series and a cat off a civic cx, its the same size piping.

 

anybody got the Magnaflow universal with dual sensor mounts?? anybody used this one to pass emissions?? anybody have the sensors for the 98 gsr motor??

 

will civic o2 sensors fit on my gsr cat??

 

I did not say this.... (slightly against the law)

install an O2 simulator for the secondary O2
run no cat
get no codes and pass emissions.

total cost ~$50 and you will never have to worry about your O2 or cat going bad.