that's about 75-100 more miles per tank than what I'm getting now
Using Mobil 1 0w20 Eco synthetic? The oil does make a difference and the 2TR Loves the light weight oil. You can get it at walmart for 27 dollars for a 5 quart jug, and its the only thing I use along with the toyota factory filters.
I decided not to go that route and sold my intake and just stuck with the Doug Thorley.
I only have 16k miles on my truck I think you have right around that much as well.