Great product and definitely gave this duramax the desperately needed air it wanted. When getting on the throttle you can hear it sucking air out of the finder of the truck which sounds sick!š I do get a little better fuel economy and I would say a little more power on the 55-90mph range. Fitment was great expect for the boot rubs on the wiring harness a tad bit but this was intended to be put on with the bundle kit so Iām not gonna sit and complain. Overall 10/10.
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