i am leaning towards using resonated test pipes but am concerned that the sensors are not going to recognize the drop in CO and reconfigure the engine parameters with what i would assume to be a richer fuel mixture and a change in timing resulting in a drop in performance. i noticed that there are many members running exhausts with TP. How are you adressing this so the engine runs correctly? i apologize in advance if this question has been adressed before but i am having difficulty in searching for the answer. I am looking at purchasing the fast intentions intimidator cat back exhaust and plan on keeping the car NA.

 

I’ve heard of something you could buy to fix this problem. I think it’s called a turbonator. I can get you one but I need $500 from you first.

 

Dude, are you 'DATA' from Star Trek? I think I've heard this thread in one of the episodes, 'Return of Spok' or something, rather

 

it seems like most people eat the insane cost and fix it with either

1) reflash
2) EU
3) UTEC

All three options I despise, the first because its mail in and that never comes out perfectly, the second because its expensive, and the third because its ***** expensive

 

The rear 02 sensors are for the smog system. It has nothing to do with engine parameters ect. The ones in the headers are for that.

 

To elaborate a little more...

The requirement of the O2 sensors is:

Temp(front) > Temp(rear)

Therefore, all four O2 sensors are for the smog system. The Help! nonfouler workaround simulates this requirement by pulling the rear sensors away from the exhaust flow, thereby reading a slightly lower temperature than the front sensors--the ECU is happy