I have a mpx lth and borla exhaust system but I lined up everything last night to see how it connects and can i still fit a cat in there with the headers and exhaust system in? It seemed like i had to take off the cat for good. And also what do i have to do with my o2 sensors? any answers would be helpful thank you

 

You might have to cut...and weld.

Ouch for just a new piping

 

A longtube header deletes the cat converter. If you want it put back in place an exhaust shop would need to cuta small section out of your midpipe and weld the cat back into place. You'll then have to extend the O2 sensor wires to the proper length and then you'll be done. An exhaust shop should be able to get it done pretty quick for a reasonable price...

 

thank you