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Hey guy's i was wondering if i added a exhaust cutout in my Harman Movtive midpipe would i need to tune it??
I know to get hte most power of out it i will. but i dont want to tune it to keep my warranty. so will the cutout hurt anything without a tune??
 

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no i had 2.75 cobb intakes and i did the cut out in the aam cat less mid pipe so i could take it out. to be honest it made me faster also. i ran it open all the time so i guess the car got used to it and adjusted to it. and no tune no tune at all
 
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