Thanks Len...already have one...Smarty Jr.LEN;83038 said:A plug and play chip for the diesel maybe your answer. They can add MPG, power if used correctly for those items. Most use just the power aspect and that uses fuel, but again can be better with more power in the hills to stay up in speed while on the hills. Plus several on the market for less than the wind deflector, and lots of reviews and people using for help or instructions.
Yep...have both. S&B cold air intake and aftermarket exhaust.LEN;83056 said:In that case if you have not already a good intake and exhaust would be on my list and not the wind deflector(never have heard good about them anyway). You just might get a bit better with either or the combo.