Gryphon vs X3

[zeruin]

Hey people.. I just e-mailed Corey about this, but feel free to chime in with any personal experiences..

I'm a member from F150online.com and it seems like the Gryphon is getting pretty decent reviews from ya'll at PHP. I drive a 2008 F-150 FX4 thats got a 6" ProComp lift, 35" Toyo MT tires, 20" Procomp 7005 rims.. I have a custom true dual Magnaflow exhaust, AF1 3.0" CAI, 4.56 gears and I'm currently set on a 93 Performance tune from VMPTuning.com.

I love my truck, and it drives pretty great, but all the mods were done within the first 100 miles, so I dont have much to compare it to.. lol 99% of my driving is done in the city where the speed limit is usually about 35-40mpg and the majority of my driving is 1-2 miles away. I realize that this isn't the best scenario for fuel economy, but I imagined that I would do better than only averaging a steady 10mpg. Come to think of it, I don't think I've even done better than 13 mpg driving 70mph on the highway. It's not that big of a deal.. I put less than 10,000 miles a year on my truck, but it doesn't hurt to ask.

My tires are properly inflated, I drive reasonably and even re-geared the truck, threw on the typical intake/exhaust mods.. and tied it all together with an X3 tuner, but I'm still getting pretty lousy fuel economy. I've tried the 87 performance and 87 economy tunes with little to no difference in mpg.

Realistically, could I expect to see any noticeable changes in fuel economy or performance with switching to a Gryphon over my X3?

Here's my truck..