jimmyz33
Junior Member
Hello! I'm a newb to diesels (bought mine 2 days ago) and I'm curious about a few minor upgrades. I almost always upgraded to K&N CAI's when I get a new vehicle, but that's always been on gas motors. My last truck was a 2020 2500 6.4L and the CAI had almost no change in performance, mileage or the sound. If I had to do it over again, I'd choose not to buy one based on that experience. So this weekend, I bought a 2020 2500 6.7L Cummins since we tow our 10k lb TT across the country to visit the in-laws at least twice/year and our last trip was an average of 7 MPG. I can already tell this will be a significant upgrade in mileage as just mixed hwy/city I've been able to avg ~ 17 MPG and the gas truck never went over 13-14 without a load.
Is it worth the $350+ to upgrade to a K&N, SB, Airaid - or any other CAI, with this setup? Can you share your numbers before/after with a similar setup? Again, I usually just buy them, but based on the 6.4L gas experience, it was money that could have been put to better use. Thanks in advance!
Is it worth the $350+ to upgrade to a K&N, SB, Airaid - or any other CAI, with this setup? Can you share your numbers before/after with a similar setup? Again, I usually just buy them, but based on the 6.4L gas experience, it was money that could have been put to better use. Thanks in advance!