Anybody pass smog/ca smog with an aftermarket downpipe(no pre cat) and the bonez mid pipe?? on a otherwise stock rx7

 

I have passed with a downpipe, bonez cat, exhaust, intake, pulley kit, and ecu. The mods I had when I passed like that should be more aggressive than what you're describing and hoping for.

 

Ya i got aftermarket dp and I got a state ref ticket and gotta make sure i can pass on the machine

 

Our '94 FD failed CA emissions in 2000 with a new Bonez HFC and downpipe replacing the stock setup. The original stock system failed by a slight amount on HC only, at 15 mph. The new Bonez setup failed hugely on HC, CO, and NOx. Many "standard" fixes such as new plugs, running with "TEN" jumpered to "GND," a hot engine, etc. did nothing; the only thing that finally worked was a new OEM cat.

 

Mine passed with flying colors. I had a 3" downpipe, catco high flow cat with 3" piping, and catback exhaust.

 

hmmmm thanks for the input guess I gotta see if I can find my stock setup, if not I dont wanna buy o.e. new, way to expensive

 

I also passed with flying colours. CIA, hardpipes full exhaust, pullies etc. It really is a great cat.

 

I passed with an HKS dp and the Bonez cat. no problems. just get it nice and hot before the test.

Jeff

 

and hopefully it will get rid of the nasty smell, r you guys makin good power still with it??? was it a big difference in feel over the stk crap?

 

hope you know studies have shown that "nasty smell" increases brain function early in the day.

 

Yes, it took place of my morning coffee.