I have a stock 89 rx7, and I'm looking at intakes and exhaust systems. I have a bad catalytic converter, so i'm looking at the Bonez superflo that replaces the pipes from the manifold to the "y pipe".

I'm also thinking about the Apex'i power intake, or the Bonez street-comp intake. Does the Apex'i filter make a difference worth the money?

 

for the intake, just get a K&N one for about $50. They're all the same.

Don't forget to get a breather filter for the air pump. ~$8 at Autozone.

 

My 91 coupe had the Bonez superflow system on it when I bought it. It's a pretty good replacement for the stock stuff.

 

i had a bonez on my 89 GTU. works well to this day