i have an AEM CAI. if i drive aggressivly i get about 265 - 285 miles before the yellow light. if i drive normal with occasional aggressivness cause i like the sound about 310 miles. true the low end tourqe thing sucks but o well i can live without spending the extra $100 on the v2. if you want to save some money on gas go to costco. it was like $2.17 for premium