This is for everyone who has bought aftermarket high flow cats... On the FD's, there is an air pipe from the air pump that goes directly into the factory (main) catalytic converter. do the after market ( bolt on) cats have the hole to insert the air pipe, for air injection?

 

The Bonez does.

 

With a high flow cat is it still needed to have an air pump? Or is it just an emissions thing?

 

its not needed, but it gives the option to keep the system

 

Keeping the air pump helps extend the life of the cat.

 

the SMB has it, but I deleted the air pump years ago

actually I'm running a RX7 Store mp right now because I wanted to run 16 psi