Have not had time to check turbo housing. But I did talk to a place about new injectors and they told me the truck should be running better and get better gas mileage even with the injectors and recommended I talk any tuner or programmer off. I removed the banks programmer and the truck really came to life, less smoke and more noticeable power going up hills. The truck probably has the wrong tuner on it. Running some a few tanks through it now, so will see if the mileage is any better. If the truck runs fine like this, I may just leave a tuner off and just use gauges. I do have a problem I will post in another post since it's not related though.