Long Tube Headers on a MM

[Black Machine]

Will placing L/T headers on a MM with a X-Pipe W/Cats cause a check engine light and is there a company that sell O2 sensor wire extensions for MMs? Thanks for any help.

[Spectragod]

My SW headers and cats came with the extensions, IIRC, they sell the extensions seperatly as well.

[LANDY]

as long as you get it tuned it wont come up.
the tuner can fix that. plus dyno tuning the car is something you want to do after LT's to fix you a/f ratio.

[Black Machine]

Thanks for the info.

[burt ragio]

Summit or jeggs should have the O2 extentions. A retune is not needed unless you have also changed the CIA. LTH alone will not change the A/f ratio enough to be concerned.