Originally Posted by MoyockPowerstroke
Nothing wrong with dumping the cat and trash can of a muffler...either way it helps lower egt's....With your 3" DP, you should be okay...but you might throw a full flow muffler on there until you decide on a solid exhaust system. There are no settings on the SCT for exhaust differences...and you do not need to let your tune writer know about deleting the EGR...most of them write tunes deleting it anyway...but you could mention it. Main thing to worry about with tuning is gauges...need to know what all the temps are....especially egt's ect and eot.
good info..BUT just to be clear, its best to tell the tuner that you are going to be having a full EGR delete, while most tuner (if not all) disable the EGR valve in tuning, they do not disable CEL's that are associated with an EGR delete such as an incomplete EGR circuit, etc, etc..so its a good idea to disclose that upfront.
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