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Message: <blockquote data-quote="98_Sactown_Cobra" data-source="post: 763981" data-attributes="member: 12969">Another reason to delete them is because your IMRC control module/servo went out (like mine) and when you look for the part to replace it with you find out that Ford/SVT don't make and or stock the part anymore. Can't find them anywhere...sans the occasional auto dismantler or on ebay if your lucky. But even then you don't know how long those will last...they will all go out eventually and the check engine light will come on...making it impossible to pass smog.So after tons or research....I found out all I had to do was install the deletes...and then find a quality tuner in the area to adjust your engine mapping to make up for the loss of low end torque. That is what I did and it has worked out great. Actually, the custom tune gained me 12 RWHP on the high end while maintaining the same seat of the pants feel on the low side. IF you really want to make sure you don't loose low end after the delete....just throw in some 4.10's and you will have the best of both worlds. Extra low end grunt with more RWHP on top.</blockquote>