Finally today I installed the SPL along with the 70RR and let me tell u...it is laud!!!! I cruised around a little bit today to see how it feels, definitely more responsive and I don't know it feels lighter too maybe it is just in my head....
Anyway love it!!!
Back in the garage for about 4hrs. I went to dinner and then out for another spin...As soon as I started the car, guess what?
CEL is on I kind of expected that.
How do u guys fix this just reset it?

 

What year is your car?

 

2004

 

That's weird, when I installed my 70RS I didn't even reset the ecu and it was fine..

And that was about a month ago.. I'm guessing since yours is a headerback and mine is a catback that would be why.. Because I already had a test pipe on the car.. So I didn't have to mess with my o2 sensor at all..

But we did my buddies 70RR on his ap1 the same night and didn't reset his ecu either.. No CEL came on in his either..

 

I guess I have to deal with that.
I will scan it tomorrow and I will let u guy know what it is.
(I work at Honda so would be free)

 

Get one of those simulators/extendors for the O2 sensor. Need one that has a 90 degree bend as the J's o2 bung is under the exhaust and extending it will cause the o2 sensor to possible get hit. Something like this
you will not get the CEL after installing one.
I would get the stainless steel version
The RR is an amazing exhaust, not for everyone but it sounds MEAN

 

Alright thank u man

 

drove it this morning couple of time after I disconnected the battery for more than 1 day so far no CEL

 

Light i back on, so I scanned it today
It is code PO420 which is the cat.
So should I buy the simulator?

 

you need s cel fix. space the 02 out from the air stream...