i want to true dual but how?

i have a 99 prerunner. i want to true dual it but how do i go about it with having to add an0ther 02 sensor and how could this be done without fllipping the check engine light?

 

What do you have, a 4banger or a 6cyl?

 

OK, looked at your description. Where does the Y pipe connect? If it's just behind the engine like I think it is you're gonna be havin' a real hard time doin' a true dual out. If the Y is under the vehicle vs behind the engine, just cut the Y and weld pipes seperate.

 

You will actually lose power with true duals.

 

How's that?

 

thoought i would gain more power but ok....more flow....2 cats and two mufflers wouldnt be enough back pressure....? and also with the urd 3" cat back you lose power to?

 

With exhaust systems there's kinda a delicate balance with the displacement of the engine and the correct back pressure and the correct amount of flow. I wouldnt recommend getting a 3inch exhaust just because our trucks don't require something that big and you won't see any benefit. Unless you're running a force induction system a dual, big, or free flowing exhaust will not help much if at all.

 

so your saying get a supercharger then slap an performance exhaust on? like that idea

 

Do it!!!!