Do I need a tune?

[bLk 03 c0uPe]

OK so my friend gave me this killer deal on this off road mac prochamber. Im adding cut outs to it and he says i will need a tune because she will run a little lean. Is this true? Thanks -Joe

 

[04silver]

it is best to get it checked just so you dont hurt your motor

 

[RussZTT]

No you wont need a tune. Why do you want to run cut out's? I bet you will loose low end trq in doing so.

 

[Shadow Grey 03]

No you wont need a tune. Why do you want to run cut out's? I bet you will loose low end trq in doing so.

My only guess is that he wants the car to sound like a huge pile of crap and lose low end torque like you said.

 

[Montanasvt]

No tune required, and it will sound like crap

 

[03cobra#694]

You`ll have to get your rear O2`s turned off,unless you can live with the cel!

 

[Justin@VMP]

The o/r pipe will not change the tune but you will get a check engine light for no cats.