https://cnrautoparts.com/exhau....st-uppipe-for-for-6-
BTW there are some older tuners running around out there that you have to tune the PCM first to unlock the delete option in the tuner, THEN you have to tune it AGAIN with the regen set to off. Those one got me a few times and I released a vehicle only to have it come back smoking like a bugger... I meant the pouring fuel smoke out when it's attempting to regenerate all the time. Since there wasn't any oil in the intake tube I didn't check the crank case pressure but when I put it back together I'll c
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