whats a good cold air to run? will i need to get a new o2 sensor or re-tune?

 

Do you mean a cold air intake? If so then ? I would assume that since the O2 sensor is in the exhaust you won't need a new O2 sensor for changing the intake from the filter to the throttle body. Ohhh...... and I would go with a MAC.

 

go with mac... no you dont need new o2's or a retune...

 

oh hahah woops alright thanks guys

 

K&N, Afe, Volant or Airaid has a quick fit system which means it has no intake tube. As far as i know mac has nothing out yet for the 04 and up ranger with MAF in lid design.

 

I just bought the K&N 77 series for my 4.0. I will tell ya what i think.

 

I would suggest K&N

 

i have airraid its a nice system keeps a bit of factory look