I tried quite a few searches and did not really find the answer I was looking for.

I am considering doing some basic mods to the TL, but I am not sure now that I read some threads. Apparently there is no way to tune the TL's ecu? This is what I gathered from the few threads I read.

Lets say I do intake, j-pipe, 3rd cat delete, and aftermarket exhaust, and maybe something with the precats. Is it safe to say that my A/F ratio would be not so great after all this? What is the solution to this if our cars cannot be tuned?

 

the ECU will automatically add fuel for the increase in oxygen. you will be fine

 

reset the ECU by disconnecting the battery and it will adjust by itself.