hi

I have some question of catback exhaust installation. I bought 06 evo IX MR with no mod because I want to learn about tuning.

So, I bought HKS Hi power CBE last week. I tried to install it by myself yesterday.

There is one hall which looks like O2 sensor hole on the catback pipe not muffler.

but my stock exhaust pipe has no hole. there is one cable which look like o2 sensor on catalytic converter.

the question is

if i install my HKS exhaust, do i have to buy test pipe which has no hole so that i can put O2 sensor on my exhaust?

 

just plug the extra hole on the catback, and get a test pipe with an o2 bung.

 

Just find a plug to screw it into the bung on the catback portion of the exhaust. Since your running a catback, the o2 sensor will be screwed into the cat so you don't need that bung on the catback. If you do get a test pipe or high flow cat that has no bung, then you can use that bung on the catback portion for the o2 sensor.

 

+1

Nicely written.

 

+2

hyess