What things do I need if I am going to add a pulley?

[ItalianSVT]

Okay, here is the thing. My 10th Anniv. Cobra had the following mods K&N cold air, Flowmaster Cat-Back Bassani off road X-pipe, C&L inlet tube. Drove it for about 70miles (car only has 15,000 on it) then the check engine light came on (checked the codes and its the one for the O2 sensor which I expected). So, since I am pry in need of a tune to stop it from throwing a code everytime I hit the gas, what things do I need to buy? I just assume pulley the car also since I am going to get a tune, may as well make it worth it lol.

Thank you for your help

 

[Carbd86GT]

A tune will be required when you install a pulley, and the tune can also be set-up to shut off the check engine light if it's being caused by the rear o2's. Give us a call if you have any other questions about modding your Cobra.

Thanks.