Hey guys I'm new here. I got my first mustang a few months ago and now I have the mod bug. I have my eye on some longtubes with high flow cats. I plan on going with Kooks. After doing some research I saw that some people have been having issues passing emissions with them. I live in PA and we have emissions testing here. Can someone who has longtubes please tell me how they were able to pass emissions? After doing some research I have found these options and came across these questions?
1. Buy a handheld bama tuner (which I already am going to buy regardless of longtubes) and have them write me a custom tune for my longtubes. However these tunes typically turn off the rear 02's which would then cause me to fail emissions correct?
2. Have an emissions tune on my bama tuner that turns on the rear o2's and drive 50-75 miles to complete the "drive cycles" the car has to go through. My question is if I turn on the rear 02's wouldn't that cause a check engine light to come on thus making me fail emissions? Also, can they write me a tune that matches whatever tune they give me for my longtubes but not turn off the rear 02's?
3. This is what I was hoping multiple people could confirm for me. I was thinking about buying two sets of these because I heard one set isn't enough (02 sensor riser non fouler). http://www.brenspeed.com/730-2442.html
Would I be able to have my rear o2's on while using these and not get any codes and pass emissions testing? Will the car run fine while using these and having the rear o2 sensors on? Also correct me if I am wrong, but our front o2's are the one's that actually matter when it comes to how the car runs, and the rear o2's just indicate that the catalytic system is just on and ready? I appreciate any answers!
1. Buy a handheld bama tuner (which I already am going to buy regardless of longtubes) and have them write me a custom tune for my longtubes. However these tunes typically turn off the rear 02's which would then cause me to fail emissions correct?
2. Have an emissions tune on my bama tuner that turns on the rear o2's and drive 50-75 miles to complete the "drive cycles" the car has to go through. My question is if I turn on the rear 02's wouldn't that cause a check engine light to come on thus making me fail emissions? Also, can they write me a tune that matches whatever tune they give me for my longtubes but not turn off the rear 02's?
3. This is what I was hoping multiple people could confirm for me. I was thinking about buying two sets of these because I heard one set isn't enough (02 sensor riser non fouler). http://www.brenspeed.com/730-2442.html
Would I be able to have my rear o2's on while using these and not get any codes and pass emissions testing? Will the car run fine while using these and having the rear o2 sensors on? Also correct me if I am wrong, but our front o2's are the one's that actually matter when it comes to how the car runs, and the rear o2's just indicate that the catalytic system is just on and ready? I appreciate any answers!
