Okay, I'm like not having any luck here.
I need to buy a bonez cat from RX7.com to pass emissions. The stock pre-cats and main-cat are gone and replaced with a custom pipe and questionable cat. Ity goes to what appears to be a stock cat-back system (pipes and mufflers).

Will an Apex N1 just bolt onlt the Bonez cat or will the piping be all screwey.

Thanks
-Max

 

The bonez cat is designed to replace the stock cat exactly if I am not mistaken Meaning that the *** end of the cat will mate up to the FC specific apex catback perfectly. The Issue you may or may not run into is from the exhaust manifold to the front of the main cat (bonez cat). This area is usually a precat, but if you system is has a "custom" pipe there it may not be the proper length to mate up to a "stock" main cat.

 

This is what the guys from Rx7.com e-mailed me regarding just that.

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"You do not need to keep your stock pre-cat, it gets eliminated by the Bonez Superflow.
It should pass emissions just fine as long as everything else on your car is in good working order.

Thank you,
Rocky"
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-Max

 

It does fit....its the same setup i have on my 88 N/A

 

Should bolt up fine. I was using this setup until i installed the headers and presilencer from RB when I was N/A

 

Yeah, I have the same setup on my T2.