Some get codes some don't, you should invest in a tune. Not trying to sell you on anything but it will wake the truck up, be better for when you swap out exhaust, and you can just have the rear o2s turned off...
Some get codes some don't, you should invest in a tune. Not trying to sell you on anything but it will wake the truck up, be better for when you swap out exhaust, and you can just have the rear o2s turned off...