After 600 miles my mileage averaged 22 mpg. The turbo definetly loves the freer flowing air, but now surges like crazy in higher power levels. I also deleted the muffler yesterday and definetly notice an improvement in throttle response. Over all I'm pleased with the mods so far. Now for some gauges and I'll be ready for phase 2.
Promised pics are comming soon, after I get a new USB. Keep checking my gallery...