Hi, I have a Jap spec 4.6GT 2v, recently fitted a Magnaflow catted Tru-flow X-Pipe, to match up to the Magnaflow system already fitted, I also have a Bomz CAI, Now the check engine light is on, I had a diagnostic reading done, It had 1 code indicating It is running a bit lean, I was advised to Buy a tune for it or replace injectors for bigger ones, the original front pipes had 6 cats with 2 O2 sensors at the front by the headers & 2 cat heater probes in the first cats, Can anyone help with this problem? :BangHead: