H&S XRT PRO with DPF - Does it require CAI?
Fighting the 6.4 for fuel milage. Had/have 7.3 and a 6.0, both responded exceptionally well to tuner programmers. Sadly the 6.4 hasn't. Had a BullyDog GT Tuner and saw ZERO milage gain. Went to local shops, they all said I have to ditch the DPF. Did that, purchased the H&S as BullyDog doesn't support DPF delete. Still, notta! Now I'm told I have to do a CAI. I'm nearly $2,000 into this and not a dollar saved in fuel! Before I invest more, whats your experiences with adding the CAI? Its a 2008 F350. No towing currently and run in no power & mild tunes from H&S. Its getting about 9 - 10 MPG (same as I was stock with no DPF delete or tune). Currently running smaller 17" skinny winter tires so rolling resistance minimal. I'm truly baffled, are the motors just that bad on fuel and do not respond to tuning? Frustrating the piss out of me for sure. I use truck everyday for work, tired of pulling into pumps every 200 miles UGH!
Thanks in advance!