I've got a 2012 5.0 with 18,500 miles, car has roush exhaust, sct tuner and driver/passenger side oil catch cans.Recently noticed a major cut in power and camshaft sensor came on a week later. checked my oil and it was EXTREMELY low. Did a full oil change and ran a compression test last night. came out healthy at 150 each cylinder. im guessing next step is leak down test? just looking for any suggestions or opinions. bought the car in July with 13k miles with all mods listed above.